i like this site, cause i feel safe that if i use a tweak, and my computer stuffs up, i have all these knowledgable people that i can ask for help! thanks again guys and gals.....in advance. I know that I was in the tweaks guide and i used the DisablePagingExecutive - LargeSystemCache and IOPageLockLimit. To the best of my knowledge, i have reset the registry to where it was however. SYMPTOMS: when i turn my computer on, it works at its normal fast pace. everything loads and works properly. but after about 10 - 15 minutes things start to slow down, programs already loaded take ages to respond to my double click, the start menu doesnt open for ages when i click on it. everything SLOWS DOWN and eventually i have to reboot. shutting down the computer takes ages also. after i reboot, the computer goes through this same process. WHAT I'VE TRIED: i scaned for viruses. nothing found. i've used clearmem, and that seems to help a little bit for the moment. i've undone what i originally did to the registry. Im lost for ideas. any help would be appreciated. thanks. J ps. i have 640 meg ram, and a duron 900.