Ghost Solution Suite

Whenever I add a new system to my Ghost db it appears in a Machine Group called "Exam Rooms" instead of "Default". Is there an option somewhere to tell Ghost where to put new systems? I can cut and past them somewhere else and then delete the "Exam Rooms" group, but it reappears whenever a new system is detected. I figure this might have been something that was configured when we first installed Ghost, but I can't find where to change it now.

Figured it out - the "Exam Rooms" Machines group was specified in the Console Boot Image used to initially set up new PCs. I've since recreated the boot image with nothing entered for Machine Group and now new systems are going into the "Default" group.