They also provide information on where to get updated graphics card drivers:
We are working on making a patch available in the next few days. Since Grand Theft Auto IV is a Games For Windows – Live game the patch must be certified by Microsoft before release. The patch is already at Microsoft and we expect a speedy approval.
The patch contains a variety of fixes including:
-A fix to the crash after legal screen that some German customers were reporting.
-Numerous improvements to the video editor: Smarter naming of videos, improved rendering quality, better fx during replays
-Fix to bowling while using certain sensitive mice
-Fix for ATI 1900 shadows
-Overall savings to memory
-Graphic improvements to particle systems and mirrors
-Multiplayer character settings are preserved
-Support for DirectInput controllers. Note: The current hack way of supporting these controllers may not work with the improved functionality. So we recommend you remove the hack before upgrading to the patch.
Issues with power management software have also been fixed (slow speed, double speed issues). Even after the patch comes out setting power management software to maximum performance is recommended. We’ve seen cases where power management software does not detect the game is running and puts the CPU in green mode.
Besides the patch we’ve also improved the way the Social Club handles data this should have greatly reduced or eliminated the Mma10 error. If you are still receiving this error after logging in and out of Social Club we would like to know as much info as you can about it.
Great to see that they're busy working on patching the game up fairly quickly to keep us all happy. Let's hope it works!
We’re pleased to announce that in co-operation with Nvidia a new driver has been released that improves performance and fixes a major issue with 7900 series cards. If you haven’t gotten the driver yet download it here: http://www.nzone.com..._downloads.html
ATI has also agreed to officially release Catalyst 8.12 which will release on Dec 10th from http://game.amd.com. Expect significant performance improvements when using this new driver.
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