I'm sorry, but we don't have anything to add other than the solutions posted here:
http://www.fsdreamteam.com/forum/index.php?topic=6293.msg55133#msg55133Which is the same thread you found. It's not a GSX problem, it's an audio drivers problem, your audio drivers have probably issues supporting the standard OpenAL library, which GSX uses. If your audio drivers make OpenAL crash (which is what is happening), there's nothing we can do from our side.
Try again all the solution posted in that thread:
- that download from Creative (OALINST.ZIP) linked there
- try to change your audio drivers, try to use the default Windows ones instead of the mainboard ones, or vice-versa, use the mainboard ones (or those of your audio card, if you have a separate audio card) and not the Windows ones.
- try resetting the GSX preferences located at %APPDATA%\Virtuali\Couatladdons.ini, maybe this will make it switch to a non-bugged audio device.