Well each time i go in camelot/mmg/jord my computer dies .. and i have to reset it ... but i can play normaly on another places.

Anyone knows wha happend?

I think the graphics at capital towns are extremely high than the rest game's places. Perhaps your video card can't process this load. Firstly, try to decrease your graphic setting to the lowest one to see if the issue fixed. If this is new problem and you could play at past in capital town, try upgrading directX and video card's drivers. If you added a new card (sound/video/tv etc) or drive (dvd/cd/etc) and you never had this problem at the past, try to disconnect a drive that you don't need from its power supply (I mean from pc case). If problem fix, then your power supply is poor for your system and heavy requerment make your pc to hang up.