Was the card purchased new or used? I've had mine for a few years, but remember that there was a problem for me running the version of CGX that came on the included disks. I had to download the newer version from phase5 (cant do that now) but cannot remember what specifically it was doing to make me have to update.
[edit] Looks like from that previous post that it is a new card so it's unlikely to be the same as the problem I had.