I'm having problems extracting compressed .rar files, no matter what size they are. I always receive numerous crc errors on every file i try to extract. I have tried WinRar, WinAce, 7-Zip, and Winzip. I have tried re-downloading the files, (theres about 10 of them) and they range in size from 700MB to 6.5 GB. This still doesn't work. I've also ran a memory test with memtest86 and had no problems with my RAM. I've also tried disabling my anti-virus program while downloading them. None of these work. I have a Dell Inspiron and I am running Windows Vista Home Edition. Any suggestions are greatly appreciated, as I have tried everything i know of, and still can't figure out the problem.