TCAS Keeps CTD'ing me :'-(

Here is the report, from the Fatal Error Window, I get when it happens:Problem signature: Problem Event Name: APPCRASH Application Name: fsx.exe Application Version: 10.0.61637.0 Application Timestamp: 46fadb14 Fault Module Name: TCAS2v7.dll Fault Module Version: 1.1.6.0 Fault Module Timestamp: 4633aecd Exception Code: c0000005 Exception Offset: 00006186 OS Version: 6.0.6001.2.1.0.256.1 Locale ID: 1033Additional information about the problem: LCID: 1033Read our privacy statement: http://go.microsoft.com/fwlink/?linkid=50163&clcid=0x0409Here are my system specs:XFX 680i LT Motherboard (BIOS Version P08)Intel Q6700 2.66GHz (not OC'd)BFG 8800 GT OC2 512MB Video (Factory OC'd)On Board Audio - Realtek High DefinitionOCZ SLI-Edition 4GB 800MHz PC6400 (2 x 2048, DIMM slots 1 & 3)Windows Vista Ultimate 32 Bit***EDIT***I have also performed the userva thing for Vista. My Virtual Memory is also set to 4096 - 6014MB; roughly.***END EDIT***I have recieved this a couple times and was wondering if anyone else has had this issue; or is having this issue. I tried to search the forums for something similar, and either overlooked it, or it was not posted.Any help would be greatly appreciated...Thanks,Sven2157