Hi guys, I have a major problem here. When I try to open lineage2 my pc is restarting or perform a shut down. I have tried all possible solutions :

1. I uninstalled-reinstalled the game.
2. I tried to recover in previous date that was working.
3. I downloaded and installed graphic card latest drivers.
4. I downloaded various programs for registry cleaning and so (cccleaner,nod32,avg,registry mechanic) e.t.c. and cleared all errors.
5. I did a format...
6. I changed resolutions, color depths, refresh rates.
and whatever can anyone imagine...

My laptop has this configuration :

Intel cpu proccessor dual 2.4 Ghz
4gb ram memory
nvidia GeForce 8600M GT 512mb
320gb hard disk

It's not a bad machine and I can open games with a lot more requirements easily such as Assassin's Creed, Crysis, Far Cry 2 and other

What can I do? I bought this laptop recently just to play lineage2 and I could open 9 windows with no problems. But before 2 weeks a strange error started to occur. "Pure virtual function call" but I could open l2 after some tries. Now nothing, only a restart or shutdown. I formatted my pc yesterday to fix it but is still the same. Please guys help me!