Quite common. Assuming you don't have a bunch of other mods hooked up to the 12v line, you should either have your power driver board rebuilt or hook up an external power supply for the Color DMD (and other 12v mods, like LED strips for example, if you have them). The latter is probably easier. The former may need to be done eventually anyway if your board is on the edge of being able to put out a stable 5v.