I'm not sure whether you are both suffering the exact same issue for the same reasons. When you put the cursor near mp3 files, their id tag info will display. Having the cursor hanging around them can cause them to blink. May I suggest you try not to have the cursor floating near mp3 file names unless needed. It's actually worse on mac osx. It's a habit you need to get into. It apparently is Java related but still not totally fixed. Java is getting better. One day ... lol

I have read of an issue that can happen with enhancement apps. Think it was something to do with X...?