I've bought CRYSIS Maximum edition via steam about 4 days ago and I've just cleared the CRYSIS with a lot of problems(DX10 crashes,crashes for no reason,etc.) and now I'm playing Warhead and I've just found the another annoying problem for me.

When I've played around 10-15 minutes and I wanna quicksave or I reached checkpoint,the game crashes and the message "Crysis Warhead is not responding" with crysis.exe error and when I look for the fault module,it says "CrySystem.dll".I googled to find the solution for this problem but not any advice to fix it.

Please help,
thanks.