DRM implementations conflict
According to CDR Info, it seems that Suncomm and Starforce, two DRM offerings, don't get along. Violently. I could say that it is a surprise, but it really isn't, I am just surprised that it took this long. DRM works on the principle of undocumented hacks to the system that actively punish lawful users. Now that they are fighting, it appears that no one is willing to step up and talk about it.
If you have a game with the Starforce DRM infection, and the misfortune of supporting the RIAA by purchasing music with Suncomm infections, guess what, you can't use them on the same machine!
If you ask ask any of the companies involved, as is so clearly pointed out by Suncomm, they will tell you it isn't their problem. So, you are screwed, and no one will help you unbreak your computer, because that is illegal.