I'm not sure this is the right section to post this message. Sorry.
Does anybody know how to solve this problem with Windows Vista Business Service Pack 2, 32 bit, on a laptop computer? (PC Configuration: pentium dualcore 2Ghz, integrated graphic card).
I've tried different screen resolution in windows vista but nothing changed.
Blender version: 2.54 beta (but i had similar problem with blender version 2.49, I had visual problems trying to split the screen).
Here is the screenshot: http://yfrog.com/neblender254vistascreenshj
Thank you Stiv.
It seems it was a problem related to the accounts of Windows Vista.
I had to run blender as administrator account to make it work.