Microsoft Visual C++ Runtime Error! - on Map Refresh in ArcMap

I'm running ArcGIS 10.1 sp1 and been recently gettting the following error on zooming in and out.

I'd found a post back at 9.3 that suggested to register the DAO libraries (DAO350.dll and da0360.dll), which I've done, but it hasn't resolved the problem.

May map conatins simple features from a 10. file Geodatabase. The error presents apparently at random. I can use the application for an hour, and then zoom out to a small scale and boom.

The Windows Event viewer seems to point to an issue with python. But am not sure how to interpret this. I don't use python. Can I un-install it?

Faulting application name: ArcMap.exe, version: 10.1.1.3143, time stamp: 0x5058f74e
Faulting module name: python27.dll, version: 2.7.2150.1013, time stamp: 0x4df4ba7c
Exception code: 0x40000015
Fault offset: 0x000e1379
Faulting process id: 0x1574
Faulting application start time: 0x01cdec6d4a82370a
Faulting application path: C:\Program Files (x86)\ArcGIS\Desktop10.1\bin\ArcMap.exe
Faulting module path: C:\Windows\system32\python27.dll
Report Id: 4852d00d-5861-11e2-a4fc-74e543548454

Any suggestions would be much appreciated.

Thanks,
Ed Blair

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