try to reinstall the sims

OK, thanks but i try also CRYSIS,NFS Undercover, Test Drive and Battlefield Bad Company 2 ... all give this problem and now i restore default for BIOS and every thing is good .

but i want to do overclocking my pc
 

maybe try something lower.. it's strange by the way..

Thank Mr.Il Metallurgico 
 for help. have anice day

you did overclock and then the problems came?

otherwise i would check driver compatibility/update/hot-fix etc

either you had over-voltaged or under-votaged your CPU and/or your CPU gets too hot

there might be another issue here, I had the same screen on an old P4 board once. The reason was the graphics card. I did raise the fsb and by accident overclocked the graphics card as well and it gave me those lines every time I've tried to play games. If that is the case, look for a BIOS entry that controls the Speed of your PCI-E interface - most motherboards have such entries in the overclocking section. If there is a default option you should set it otherwise check your manual for the default frequency and set it manually.

If it is temp related, run a cpu benchmark and monitor your temps with everest,cpu-z , hwmonitor or whatever you prefer.

Intel's recommended max temp for your cpu is around 72°C, everything above might damage it over time.

ohhh, i am sooo sorry for late :)

 thank you every one for help, my temp:

http://img686.imageshack.us/img686/9762/61412709.jpg

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Mr.RampageNL yes its just after overclocking.

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 Mr. TheRealPowerUser - sorry i am new in overclocking how can i know where is the prob ?

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 Mr.Andreas Hofer

i change the frequency to 100Mhz but same, what is the frequency i need ?

 every one many thanks for your help.. did any one think i need to update the BIOS ? but also its my 1st time to update BIOS.

thanks for help all

i resolve the prob by updating BIOS.