Yep. With vista and IE8 I've had to disable .net and all the other programs that I don't want to auto-update. I've disabled so many "startup programs" out of the 120 or so that boot up when vista starts. I can boot them up when I need them. I have to defrag often and do disk cleanup two to three times a day. I skiped it for 2 days and had .9 gig in usless files to dump. That much in temporary, windows live files, etc. that don't have that much space alocated really slow my computer down. It overloads when I do graphics and it gets tired, it leaves paint drops on the painting as I move my cursor from painting to to the menu bar.
No problems installing and no error messages, just slow. I've even had to turn off sidebar to gain speed. Never had any of those problems with XP and IE7. One gig processor and one gig ram. It was faster than me almost. 2.8 gig prossor, 3 gig of ram and IE8 and Visa, I have to wait for the computer to catch up with me as it stores all info about every thing I have done when I finish with a program or get offline. No solution here that I care to tackle at the moment, just work arounds and Murffey's law - if it works, don't fix it.[8]