insert cd?

[osterdog 10]

I bought Operation Arrowhead through direct2drive, and at first it said that i needed the original disc to play the game, so i uninstalled power iso, and image mounter and then it worked. But after upgrading to patch 1.54, i get the same message. Can anyone give me any suggestions?

[Trilton 10]

You need to use the patch supplied by Direct 2 Drive.

http://www.direct2drive.com/patches/