Just upgraded to Windows 8.1. Now FSX repeatedly crashes, usually after I click any any option using the drop-down menus. I've tried running it in both Vista and Windows 7 compatibility modes. Here's the error info: Faulting application name: fsx.exe, version: 10.0.61637.0, time stamp: 0x46fadb14 Faulting module name: atiumdag.dll, version: 9.14.10.984, time stamp: 0x522fc960 Exception code: 0xc0000005 Fault offset: 0x00024c81 Faulting process id: 0xd58 Faulting application start time: 0x01cecdbb18fa9ac8 Faulting application path: C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X\fsx.exe Faulting module path: C:\WINDOWS\SYSTEM32\atiumdag.dll Report Id: 97046b5d-39ae-11e3-bea1-d43d7e38f527 Faulting package full name: Faulting package-relative application ID: Any help would be appreciated!