diff --git a/help/CommandLine.html b/help/CommandLine.html
index 6ab5b87f..a5eed164 100644
--- a/help/CommandLine.html
+++ b/help/CommandLine.html
@@ -135,11 +135,28 @@
 		-alt-enter=&lt;toggle-full-screen|open-apple-enter&gt;<br>
 		Define the behavior of Alt+Enter:
 		<ul>
-			<li>Either: Toggle between windowed and full screen video modes (default).
-			<li>Or: Allow the emulated Apple II to read the Enter key state when Alt (Open Apple key) is pressed.
+			<li>Either: Toggle between windowed and full screen video modes (default).</li>
+			<li>Or: Allow the emulated Apple II to read the Enter key state when Alt (Open Apple key) is pressed.</li>
 		</ul>
+		-rgb-card-type &lt;apple|sl7|eve|feline&gt;<br>
+		<ul>
+			<li><i>apple</i> is the Extended 80-Column Text/AppleColor Adaptor Card (default).</li>
+			<li><i>sl7</i> is Video-7's RGB-SL7 card.</li>
+			<ul>
+				<li>NB. This card supports an extra foreground/background hi-res mode that can be triggered by AN3 switching, resulting in corrupt color graphics!
+			</ul>
+			<li><i>eve/feline</i> are Le Chat Mauve variants.</li>
+		</ul>
+		Use in conjunction with the 'Color (RGB Card/Monitor)' video mode.<br><br>
+		-rgb-card-foreground &lt;n&gt;<br>
+		-rgb-card-background &lt;n&gt;<br>
+		Where n is [0..15]. Defaults are foreground=15(White) and background=0(Black).<br>
+		The only supported DIPSW colors are: Black=0, Blue=6, Orange=9, Green=12, White=15<br>
+		NB. Only supported by '-rgb-card-type sl7'.<br>
+		Use in conjunction with the 'Color (RGB Card/Monitor)' video mode.<br><br>
 		-rgb-card-invert-bit7<br>
-		Force the RGB card (in "Color (RGB Monitor)" video mode) to invert bit7 in MIX mode. Enables the correct rendering for Dragon Wars.<br><br>
+		Force the RGB card to invert bit7 in MIX mode. Enables the correct rendering for Dragon Wars.<br>
+		Use in conjunction with the 'Color (RGB Card/Monitor)' video mode.<br><br>
 		-50hz<br>
 		Support 50Hz(PAL) video refresh rate and PAL 1.016MHz base CPU clock.<br><br>
 		-60hz<br>
diff --git a/help/Troubleshooting.html b/help/Troubleshooting.html
index cca89842..94a81da6 100644
--- a/help/Troubleshooting.html
+++ b/help/Troubleshooting.html
@@ -52,5 +52,12 @@
 		<li>Try installing the Realtek-specific audio driver supplied by ASUS (as opposed to the default Win10 driver).</li>
 		</ul>
 
+		Color (RGB Card/Monitor) and title compatibility issues:
+		<ul>
+		<li>Dragon Wars: double hi-res bit7 needs inverting, so use the -rgb-card-invert-bit7 command line switch.</li>
+		<li>Prince of Persia: the hi-res graphics will switch to B&W hi-res during the title sequence.</li>
+		<li>Renegade: switches to 160x192 mode at the title screen and B&W hi-res during game play.</li>
+		<li>Video7's RGB-SL7 card: corruption for titles/demos that accidentally switch to foreground/background hi-res mode, eg. French Touch DIGIDREAM demo.</li>
+		</ul>
 	</body>
 </html>
diff --git a/help/acknowledgements.html b/help/acknowledgements.html
index 8010a61e..55b2c771 100644
--- a/help/acknowledgements.html
+++ b/help/acknowledgements.html
@@ -24,6 +24,6 @@
 		<p style="MARGIN-LEFT: 40px">Andrea Odetti: numerous pull-requests</p>
 		<p style="MARGIN-LEFT: 40px">Iván Izaguirre: Taiwanese Copam Base64A Apple II clone</p>
 		<p style="MARGIN-LEFT: 40px">Arnaud C: debugger suggestions and help with 6502/6522/video timing issues</p>
-		<p style="MARGIN-LEFT: 40px">Cyril Lambin: debugger improvements</p>
+		<p style="MARGIN-LEFT: 40px">Cyril Lambin: RGB card/monitor rendering, debugger improvements</p>
 		</body>
 </html>
diff --git a/help/cfg-config.html b/help/cfg-config.html
index 89d19ec0..c0317cf7 100644
--- a/help/cfg-config.html
+++ b/help/cfg-config.html
@@ -36,9 +36,11 @@
 		<ul>
 			<li><strong>Monochrome (custom) :</strong>&nbsp;This mode emulates a monochrome monitor.<br>
 			You can choose your monochrome color from the <em>Monochrome Color</em>	button described below.
-			<li><strong>Color (RGB Monitor) :</strong>&nbsp;This mode emulates a standard RBG color monitor.
-			<br>Text is sharp like a white monochrome monitor. Color graphics has only 16 colors (with no blurring or ringing).
-			<li><strong>Color (NTSC Monitor) :</strong>&nbsp;This mode emulates a standard NTSC color monitor.
+			<li><strong>Color (Composite Idealized) :</strong>&nbsp;This mode emulates an <i>idealized</i> composite color monitor.
+			<br>Text is sharp like a white monochrome monitor. Color graphics has only 16 colors (with no blurring or ringing). This is the only mode that supports vertical blend.
+			<li><strong>Color (RGB Card/Monitor) :</strong>&nbsp;This mode emulates a standard RGB card and monitor.
+			<br>Text is sharp like a white monochrome monitor. Color graphics has only 16 colors (with no blurring or ringing). Double hi-res is 140x192 chunky pixels (or software selectable as: B&W or mixed Color/B&W). From the <a href="CommandLine.html">command line</a> you can specify the RGB card, the default is the Extended 80-Column Text/AppleColor Adaptor Card. Some double hi-res titles may have compatibility issues. See <a href="Troubleshooting.html">troubleshooting</a>.
+			<li><strong>Color (Composite Monitor) :</strong>&nbsp;This mode emulates a standard NTSC (or PAL) color monitor.
 			<br>Text is sharp, but contains color artifacts. Color graphics has visible alternating color and black pixels.
 			<li><strong>Color TV :</strong>&nbsp;This mode emulates an NTSC color TV.
 			<br>All text and color graphics modes are blurry and have visible ringing.
@@ -55,7 +57,7 @@
 		<br>
 
 		<strong>Vertical blend:</strong><br>
-		When video mode is 'Color (RGB Monitor)' then vertically blend the hires screen.<br>
+		When video mode is 'Color (Composite Idealized)' then vertically blend the hi-res screen.<br>
 		<br>
 
 		<strong>Full-Screen: Show drive/keyboard status:</strong><br>
diff --git a/source/Applewin.cpp b/source/Applewin.cpp
index de6ce2e6..8ec23326 100644
--- a/source/Applewin.cpp
+++ b/source/Applewin.cpp
@@ -1299,12 +1299,12 @@ static bool CheckOldAppleWinVersion(void)
 
 static void ExceptionHandler(const char* pError)
 {
-		MessageBox(	g_hFrameWindow,
-					pError,
-					TEXT("Runtime Exception"),
-					MB_ICONEXCLAMATION | MB_SETFOREGROUND);
+	MessageBox(	g_hFrameWindow,
+				pError,
+				TEXT("Runtime Exception"),
+				MB_ICONEXCLAMATION | MB_SETFOREGROUND);
 
-		LogFileOutput("Runtime Exception: %s\n", pError);
+	LogFileOutput("Runtime Exception: %s\n", pError);
 }
 
 //---------------------------------------------------------------------------
@@ -1821,7 +1821,7 @@ static bool ProcessCmdLine(LPSTR lpCmdLine)
 		}
 		else if (strcmp(lpCmdLine, "-rgb-card-type") == 0)
 		{
-			// RGB video card valide types are: "apple", "sl7", "eve", "feline"
+			// RGB video card valid types are: "apple", "sl7", "eve", "feline"
 			lpCmdLine = GetCurrArg(lpNextArg);
 			lpNextArg = GetNextArg(lpNextArg);
 
@@ -1838,14 +1838,14 @@ static bool ProcessCmdLine(LPSTR lpCmdLine)
 		}
 		else if (strcmp(lpCmdLine, "-rgb-card-foreground") == 0)
 		{
-			// Default hardware-defined Text foreground color, for some RGB cards only
+			// Default hardware-defined Text foreground color, for Video-7's RGB-SL7 card only
 			lpCmdLine = GetCurrArg(lpNextArg);
 			lpNextArg = GetNextArg(lpNextArg);
 			g_cmdLine.rgbCardForegroundColor = atoi(lpCmdLine);
 		}
 		else if (strcmp(lpCmdLine, "-rgb-card-background") == 0)
 		{
-			// Default hardware-defined Text background color, for some RGB cards only
+			// Default hardware-defined Text background color, for Video-7's RGB-SL7 card only
 			lpCmdLine = GetCurrArg(lpNextArg);
 			lpNextArg = GetNextArg(lpNextArg);
 			g_cmdLine.rgbCardBackgroundColor = atoi(lpCmdLine);