Okay so ive been playing gta4 on this system all day and i restarted it a moment ago and after the loading screen, gta4 crashes.  
i am on version 1.0.7.0 :Athlon II X3 425 @2.7 tri core, geforce 9200 integrated. windows 7 x64 
So after the loading screen "'mission:out of the closet'... loading" it crashes. 
there are 2 dialog boxes stating that gta4.exe has stopped working: 
the first one: 
Description: 
  Critical runtime problem 
Problem signature: 
  Problem Event Name:	APPLICATION CRASH 
  System RAM:	-538390528 
  Available RAM:	1268187136 
  Number of CPUs:	3 
  Video Card Manufacturer:	NVIDIA 
  Video Card Description:	NVIDIA GeForce 9200 
  Video Card Driver Version:	8.15.0011.8637 
  OS Version:	6.1.7600.2.0.0.768.3 
  Locale ID:	1033 
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  C:\Windows\system32\en-US\erofflps.txt 
the second one: 
Problem signature: 
  Problem Event Name:	APPCRASH 
  Application Name:	GTAIV.exe 
  Application Version:	1.0.7.0 
  Application Timestamp:	4bd9efbe 
  Fault Module Name:	GTAIV.exe 
  Fault Module Version:	1.0.7.0 
  Fault Module Timestamp:	4bd9efbe 
  Exception Code:	c0000005 
  Exception Offset:	004dd6ff 
  OS Version:	6.1.7600.2.0.0.768.3 
  Locale ID:	1033 
  Additional Information 1:	fea7 
  Additional Information 2:	fea78afc140967119290cc27385e0510 
  Additional Information 3:	20ce 
  Additional Information 4:	20ce3e492a2aa7e5b8cfe9b7b1f05b42 
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PLEASE DONT TELL ME THT MY GRAPHICS IS MY PROBLEM, I WAS RUNNING THIS GAME EARLIER WITH 800X600 ON FULL SETTINGS EXCEPT VIEW AND DETAIL DISTANCE LOW,  AND I GOT AT LEAST 25FPS MINIMUM... 
I did not do any updates or anything, i just restarted my comp because of a diff program and now gta crashes