from last one week i am using WINDOWS VISTA ULTIMATE . As for UI (User interference) it looks very glossy, attractive, eye candy OS it took me about three days to get friendly with it. As for gaming exp. , i have XFX 7950GX2 still i was not able to play Major game like" NFS carbon" ending with appcrash error. i also tried runnig CMR 04 it also crashed with same error. one good thing about vista is it installs latest drivers for motherboard and graphics card without going online. vista is a bit of resource eater. my pc config. is AMD 3500+(64 bit), 1.5 GB RAM , 400 GB space, Nvidia 7950 GX2 ,. while playing games like advance warfighter it took more time in loading . some softwares like alcohol 120% , nero 7 failed to run. I think it require some patches to run on vista. It is suffering from the same problem that XP suffered when it was launched. it always asks us permission even to listen to songs. irritating.!!!!