Well, ummm, no. Having too many things installed in ROM will not cause the camera to not open. That's due to too many things running all at the same time (in RAM). Make sure you have a task manager running that's capable of really closing your apps, like HTC taskmanager or handyswitcher, or any of the other 500 that are out there. Or, try doing a soft reset, which will close all of the programs as well.
Give that a shot. If not, come find someone in the chat room.
__________________
C-C-C-A-A-A-R-R-R-L-L-L
|