Explorer.exe crashes constantly

1. Start Autodesk Quantity Takeoff 2011
2. Right click on desktop
3. context menu doesn't show, instead explorer.exe keeps crashing and restarting

But this problem doesn't happen on my work computer with following specs
CPU - E8600
Memory - 4GB RAM
Graphics - 9600GT
OS - windows 7 professional 32bit

I've attached the crashdump files, if anyone can make any sense of it.

Many thanks in advance.

Hi
This is usually happening because of 3rd party explorer extensions. Open Reliability Monitor (Start -> Search for Reliability and hit ENTER). There you will see all Explorer.exe errors Double Click on them an post here the details for the last one at least. Also consider using Sysinternals Autoruns or ShellExView. Disable non-Microsoft shell extensions and add-ons, and check the behavior. If it is gone, re-enable the disabled extensions/add-ons, one at a time, and see if you can identify which may be responsible.
You can always try a clean boot, or boot into safe mode to see if the behavior persist.

LE: I don't know what Autodesk Quantity Takeoff 2011 does but usually Autodesk apps require a video card. I also assume you have nVidia Control Panel on your context menu(NVIDIA CPL Context Menu Extension in ShellExView). Try to disable this and check if explorer still crashes.