hello, i am having a serious problem. first, i tryied playing l2 god in l2.com there i could play about 10min. then game crashes, everything freezes except for a mouse for a while, and sound goes buzzing. in this case i can't do anything just to reboot laptop manually. and everytime i could play for about 10min. later on game started crashing just when starting moving, so i couldnt play at all. after this i started playing in l2.eu everything was ok for 2 days. today it started crashing again. so i'm in a desperate now...what should i do? about my pc: dell xps15 intel core i7-2630qm cpu 2ghz ram 4gb graphics nvidia geforce gt540m 2gb p.s. sorry for grammar mistakes any ideas?