[Gmod-help] crashes/restarting computer

[Jeremy Davidson]

Hello! I have been playing Gmod for a while but never experimented with NPC's. Whenever anyone (player or NPC) shoots at anyone the game crashes and either an error is displayed saying "could not "read" memory. Click OK to terminate." Or my computer restarts with no warning instantly. I have an Intel 82915G/GV/910GL chipset that I think may be causing the problem. If it is could I fix the problem without a new graphics card?
 		 	   		  
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