I installed the new version 1.0 today after having the old version. I had no problems with my old version, everything loaded fine. I successfully installed the new version and the components it came with and then right clicked on the GTA4 Launcher i had always used and clicked run as administrator. It signs me into the play online thing and then pops up the windows error that GTA 4 has stopped working, which i then click close. At this time an icon pops up stating that DEP closed GTA 4 . I went to the setting and checked the GTA 4 files to allow it to work under DEP. I then restarted my computer and tried it again and it still does the same thing ? Anyone else having this problem ? I am running Vista. Thanks 

Problem signature:

  Problem Event Name: BEX

  Application Name: GTAIV.exe

  Application Version: 1.0.7.0

  Application Timestamp: 4bd9efbe

  Fault Module Name: culture.dll

  Fault Module Version: 4.0.30319.17929

  Fault Module Timestamp: 4ffa5576

  Exception Offset: 000017f0

  Exception Code: c0000005

  Exception Data: 00000008

  OS Version: 6.0.6002.2.2.0.768.3

  Locale ID: 1033

  Additional Information 1: fd00

  Additional Information 2: ea6f5fe8924aaa756324d57f87834160

  Additional Information 3: fd00

  Additional Information 4: ea6f5fe8924aaa756324d57f87834160

 

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Please post AdvancedHook.log.

I am having exactly the same problem as you...no difference what so ever.

I know my game is fully updated as i run if off steam.
sad that even after 4 days no one knows what the problem is but it makes me feel better to know I'm not the only person with this problem. 

I hope we have a fix for this very soon.

I have the same problem.  Found this today.  Gonna try it when I get home.  Hope it helps :

 

http://www.mydigitallife.info/disable-and-turn-off-or-enable-or-turn-on-data-execution-prevention-dep-in-windows-vista/