AC:1 Problem

^update the AC with its official patch & also update ATI drivers

Looks more like a driver problem.

hey mate, don't play too much man. You have exams from next week (even I have from monday).
Do they dissapear after appearing or they appear late?? If its latter then its is common. I face this when running, suddenly someone pops out just in front of me...

Updated ..... still crashes... I hate Ati 5450

its time...

ur card has burnt out. do the tests and stuff, plan your strategy to extort money from parents for a new card

^ Are you sure ?

Similar thing happened to me.. i was getting white models in the begining.. then missing models later.. then the heating problems will start and game launch itself will show error..
then i opened the CPU only to find "the horror".. RIP GPU

Not so fast, monitor GPU temps first.

Catalyst Control Centre shows it as 50 degree c
All games have a problem
Crysis 2 problem.
Say when i zoom in the gun....its very weird....first the gun almost dispears..and the screen looks like two pics have been joint together(Hard to tell),i stopped gaming..Will resume once i get a new rig...in march end

not sure, but if your Ati GPU konks off, the system automatically switches to the chipset GPU.. hence the gpu temp will still be stable.. i think that is what is happening in your case