Thanks for the info Doug.
When I was comparing my machine to my friends, his pegged at 100%CPU, and mine hovered around 48%CPU the entire time it was running (and Access was the only thing running). My machine was still running the Access job after his had been done LONG earlier (over twice as long). And the CPU load never went above 50%. So I just assumed that it would only allow 1/2 to be dedicated to any one app at a time.
This same friend runs a visualization I created in MC, and his CPU load hovers in the mid to high 90% range while running, and mine hovers around 45% running the same thing. His computer has none of these lag issues in MC, and mine is sometimes nearly unuseable in MC. I'm no fan of the Hyperthreading at this point.
I assume neither Access nor MC is written to take specific advantage of hyperthreading, which is what has caused my problems. But, what software is? I use XP Pro, Office 2000, some specific Mortgage Origination software, and MC. What's the point of hyperthreading in my case?
I have done a little reading about turning off hyperthreading, and most things I have read says you might not have to reinstall, but hyperthreading installs some/many files specifically for use with hyperthreading, so everyone I have read says it is a good idea to reinstall, and many have said i would most likely have to reinstall XP or I'll have many wierd issues in the future.
I'm not trying to imply you are wrong, because I really don't know, but, why do you say I don't need to reinstall? Have you done it yourself, is it your line of work, have you researched it?
Thanks again for you input. I really want to turn it off, but I don't want to have to install from scratch again. Especially since i'm probably gonna sell this laptop within the year.