After a successful install, upon launch regrettably this game returns the error code 0xc0000142, which according to Microsoft relates to the ISA (Internet Securty and Acceleration) being ineffective. Not sure if Windows 7 has an ISA built in or whether it can be updated? Not sure why this would come up in the first place. Any suggestions would be welcome. (Have a new Toshiba laptop, 500GB hard drive, Windows 7, AMD Sepron SI 42 / 2.1Ghz processor). Many thanks.