Hi,
I have a curious problem using walktest (but the same problem was founded with simple2).
If I run the programs in normal view or in fullscreen mode (not maximized) all works fine. But if I maximize the window all became odd: some objetcs dot not correctly appear (for example they suddenly vanish) and the walls of the room aren't correctly draw like this screenshot:

And this is a screen form the same view taken in the normal view:

Someone has any suggestion?
Please note that the framerates are not so terrible: normal view 220 fps, maximized 118 fps, fullscreen 220 fps (taken at the begin), my screen resolution is 1280*1024.
My system: Windows XP SP2, ATI Radeon 9100 (with last driver update), CrystalSpace cs-pseudo-stable-2005-09-03
Many thanks and Happy Holydays