I have purchased Half Life 2 with Episode 1 expansion. Half life 2 starts fine, but upon the Episode 1 launch, I get a warning saying that my videocard driver is outdated. I have an X1600 that comes with the 17" intel iMac model. So, I go to ATI and I download the latest catalyst drivers for X1600 series, only that they don't work, because the installer says that " Setup did not find a driver compatible with your current hardware or operating system". What can I do? Does Boot Camp install its own drivers and they can't be changed?