it's in the drive. Cleaned, tried both disc drives, comp just won't read it.

Any ideas?

Piesofthenorth,

Bad cd or bad cd-rom drive. You can get the cd replaced by us if you like but you'll have to do it via mail, or you could just get the digital download version.

For more information, please visit our Game Download page here:
http://us.blizzard.com/support/article/24813