CRC .cab errors

[pitchblack]

Whenever I try to instyall a game on VISTA, I get a message that says: CRC error <filename> does not match the file in the setup's .cab file. I get it in both my disk drives, as well as on multiple games, mant of them new out of the box. How do I fix this??

System Specs:
ASUS Maximus formula mobo
WD Caviar HDD
ASUS DRW-2014L1T DVD-RW drives(2)
Intel Q6600
OCZ Reaper 800MHZ Ram(2G)
ATI HD 3870

 

[Nodsu]

Disable your antivirus. Test your RAM, test your hard drives. Look over the hard drive and optical drive cables and make sure they are all making good connections.

 

[pitchblack]

it was the ram... $$100$$ to replace