The above screen shot was taken from SolidWorks 2007 on Windows XP Windows Explorer.

The below screen shot was taken from SolidWorks 2011 on Windows 7 Windows Explorer.

.

Notice the favorite thumbnails are no longer there at all in Win7, and in the block thumbnails the lines are barely visible. Has anyone else seen this, and if so have you found a resolution? This is a fairly out of the way kind of problem, but it's an annoyance and a step in the wrong direction. I did change the SolidWorks thumbnail display setting and rebooted, but it had no effect on this display.