CTD on a new build

Hi everyone,I was flying today with the PMDG Jetstream 4100 and I was on a 10 mile final for KBUR from KLAS. I got a CTD and I was wondering if anyone else has seen this happen.There were 2 errors. My specs are in my sig. I have uiautomation, Bojote's tuning tool, and Ryan's Nvidia tweaks stickied in the PMDG forums. No addon scenery. Not overclocked. I was on VATSIM at the time. Very frustrating, was 5 minutes from shutting down. ugh! Any thoughts or ideas are appreciated.Here is my report from event viewer.Log Name: ApplicationSource: Application ErrorDate: 4/20/2011 1:09:10 PMEvent ID: 1000Task Category: (100)Level: ErrorKeywords: ClassicUser: N/AComputer: SkyNetDescription:Faulting application name: fsx.exe, version: 10.0.61637.0, time stamp: 0x46fadb14Faulting module name: ntdll.dll, version: 6.1.7601.17514, time stamp: 0x4ce7ba58Exception code: 0xc0000005Fault offset: 0x0002e3fbFaulting process id: 0xec8Faulting application start time: 0x01cbff86bf798a49Faulting application path: C:\FSX\fsx.exeFaulting module path: C:\Windows\SysWOW64\ntdll.dllReport Id: 0d36e584-6b8a-11e0-ab55-bcaec576077cEvent Xml:<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"><System><Provider Name="Application Error" /><EventID Qualifiers="0">1000</EventID><Level>2</Level><Task>100</Task><Keywords>0x80000000000000</Keywords><TimeCreated SystemTime="2011-04-20T20:09:10.000000000Z" /><EventRecordID>5268</EventRecordID><Channel>Application</Channel><Computer>SkyNet</Computer><Security /></System><EventData><Data>fsx.exe</Data><Data>10.0.61637.0</Data><Data>46fadb14</Data><Data>ntdll.dll</Data><Data>6.1.7601.17514</Data><Data>4ce7ba58</Data><Data>c0000005</Data><Data>0002e3fb</Data><Data>ec8</Data><Data>01cbff86bf798a49</Data><Data>C:\FSX\fsx.exe</Data><Data>C:\Windows\SysWOW64\ntdll.dll</Data><Data>0d36e584-6b8a-11e0-ab55-bcaec576077c</Data></EventData></Event>Log Name: ApplicationSource: Application ErrorDate: 4/20/2011 1:09:14 PMEvent ID: 1000Task Category: (100)Level: ErrorKeywords: ClassicUser: N/AComputer: SkyNetDescription:Faulting application name: fsx.exe, version: 10.0.61637.0, time stamp: 0x46fadb14Faulting module name: terrain.dll, version: 10.0.61637.0, time stamp: 0x46fadb59Exception code: 0xc0000005Fault offset: 0x0005595eFaulting process id: 0xec8Faulting application start time: 0x01cbff86bf798a49Faulting application path: C:\FSX\fsx.exeFaulting module path: C:\FSX\terrain.dllReport Id: 1003a493-6b8a-11e0-ab55-bcaec576077cEvent Xml:<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"><System><Provider Name="Application Error" /><EventID Qualifiers="0">1000</EventID><Level>2</Level><Task>100</Task><Keywords>0x80000000000000</Keywords><TimeCreated SystemTime="2011-04-20T20:09:14.000000000Z" /><EventRecordID>5270</EventRecordID><Channel>Application</Channel><Computer>SkyNet</Computer><Security /></System><EventData><Data>fsx.exe</Data><Data>10.0.61637.0</Data><Data>46fadb14</Data><Data>terrain.dll</Data><Data>10.0.61637.0</Data><Data>46fadb59</Data><Data>c0000005</Data><Data>0005595e</Data><Data>ec8</Data><Data>01cbff86bf798a49</Data><Data>C:\FSX\fsx.exe</Data><Data>C:\FSX\terrain.dll</Data><Data>1003a493-6b8a-11e0-ab55-bcaec576077c</Data></EventData></Event>