Once I finish installing the 5th disc, I try to run Steam and I get the following error message: Steam.exe (main exception): CMultiFieldBlob(pSerialized): Bad field - extends past end of blob and I can only click "OK". I've rebooted and still gives the message when I try to run Steam or CS or HL. I've installed it twice and it still won't change; I have about 3GB left on the HDD partition after I installed it. Is this caused by Boot Camp or by Steam, or what? My HL:2 discs are legit.; bought 'em from Best Buy yesterday.