I have experienced a way to reproduce the mysterious scrollbar problem on my box _any all time_:
1. Start LyX 2. Open the User Guide (or another large doc) 3. File->New 4. Immediately switch back to User Guide => The scrollbar doesn't recognize the document size (it behaves as if the document wouldn't be larger than the lyx screen) see screenshot: http://omnibus.uni-freiburg.de/~spitzmue/lyx.png => When you move the cursor downwards, the scrollbar looks as it should, but freezes! GDB and -sync don't give interesting results (but this is most likely an xforms bug). xforms 0.89.6 Regards, Juergen.
