You probably got hit by some cracked software with tojans or worse.
Wipe the drive out and reload the OS. Start over and take the lesson that it's very dangerous to download copyrighted works.
I downloaded a game Sim City 4 and I think my resolution was set up too high so it went OOR on my screen.
However, my computer got worse after that happened. I could only get online with safe mode, which is what i am doing right now. None of my desk icon would work when I click on them. Pulling up all the program files by hitting the menu button it will not work. I tried to run some viruses scan and spyware softwares and it got some viruses and spywares but I "think" i got rid of them but there is something weird that I never seen happening before.
I have AVG 7.0 Free Edition and when I ran it this time everything looked ok BUT it said " user32.dll" , "shell32.dll", "ntoskrnl.exe" changed instead of showing ok. I dont know why none of my normal desk icons or program files will not work and I tried to run a CD and my CD-Rom but it will not work either. At this moment I dont know what to know. I have Window XP Service Pack 2. Geforce 3 video card. Would anyone happen to know how to solve this problem? This whole problem happened after the OOR happend and whole bunch of pop-ups came up and I got viruses. I deleted SM4 from my computer. If anyone would know how to fix it please reply here. Thanks so much.
Oh btw I also tried to retore the computer but it couldnt be done so..