As I was playing on my xbox, my dumbass brother made my Samsung SyncMasterP2370HD fall on the ground. Now the colours went all dark, what showe black before shows whit now and white shows black. Do you guys think its completely broken and not repairable without replacing the parts?
Completely broken, it's not. Repairable without replacing parts, doubt that too! Take it to a technician or something, he might repair it for you for less than buying a new monitor. IMHO the screen bled a lot..
Your best bet is to get professional support. My knowledge on troubleshooting LCD screens isn't that great, but assuming you've ruled out all the obvious things (software-related and related to the PC / wiring), I would hazard a guess at the actual panel being fucked up