diff --git a/Cache/BlockCache.cpp b/Cache/BlockCache.cpp
index f9327fa..b6670b5 100644
--- a/Cache/BlockCache.cpp
+++ b/Cache/BlockCache.cpp
@@ -22,8 +22,6 @@ using namespace Device;
 using ProFUSE::Exception;
 using ProFUSE::POSIXException;
 
-#pragma mark -
-#pragma mark BlockCache
 
 BlockCache::BlockCache(BlockDevice *device)
 {
diff --git a/Device/RawDevice.cpp b/Device/RawDevice.cpp
index 7c9dbc4..11c1494 100644
--- a/Device/RawDevice.cpp
+++ b/Device/RawDevice.cpp
@@ -188,7 +188,7 @@ void RawDevice::read(unsigned block, void *bp)
     // apple - read full native block(s) ?
 
     off_t offset = block * 512;    
-    size_t ok = ::pread(_file.fd(), bp, 512, offset);
+    ssize_t ok = ::pread(_file.fd(), bp, 512, offset);
     
     // TODO -- EINTR?
     if (ok != 512)
@@ -211,7 +211,7 @@ void RawDevice::read(TrackSector ts, void *bp)
     // apple - read full native block(s) ?
 
     off_t offset = (ts.track * 16 + ts.sector) * 256;    
-    size_t ok = ::pread(_file.fd(), bp, 256, offset);
+    ssize_t ok = ::pread(_file.fd(), bp, 256, offset);
     
     // TODO -- EINTR?
     if (ok != 256)
@@ -233,7 +233,7 @@ void RawDevice::write(unsigned block, const void *bp)
 
 
     off_t offset = block * 512;    
-    size_t ok = ::pwrite(_file.fd(), bp, 512, offset);
+    ssize_t ok = ::pwrite(_file.fd(), bp, 512, offset);
     
     if (ok != 512)
         throw ok < 0 
@@ -255,7 +255,7 @@ void RawDevice::write(TrackSector ts, const void *bp)
 
 
     off_t offset = (ts.track * 16 + ts.sector) * 256;    
-    size_t ok = ::pwrite(_file.fd(), bp, 256, offset);
+    ssize_t ok = ::pwrite(_file.fd(), bp, 256, offset);
     
     if (ok != 256)
         throw ok < 0