System: i7-2600k Processor - ASUS P867 MotherBoard - 32G Ram - Quadro600 Graphics (SolidWorks user since 1998)

Overclocked: 4.5g with no cooling or stability issues.

Problem: When working on an imported part - SolidWorks would not allow any new feature to be merged to the existing Imported Solid body.

My Solution: Switch off overclocking (Problem remained) - Reload SolidWorks / Volia > Back to normal funcionality.

Question: Has anyone else had similar problems when Overclocking?? (& hopefully come to a solution)

Thanks.