i just downloaded and installed blender 2.2 for windows
when i run it the display comes up but there are no buttons. i have to move my cursor over them for them to appear and they still do not seem to work half the time.
i'm running an athlonXP 1800 on a soltek SL75-DRV5 mobo with 768mb PC2700 DDR RAM
and a chaintech GEforce4 MX 440 video card
Try turning off antialiasing in you desktop advanced properties. I had the same problem and this worked for me.