I'm using sw2006sp5.x on one machine, and since the prior usage a couple days back, it suddenly refuses to do an extrude. No matter what the sketch contains, instead of the preview of the extrusion while it waits for input of the extrude amount, a msg is displayed "This operation requires a fully defined sketch". An old sldprt loads and looks OK, but extruding any sketch in a new sldprt is disabled. I imported an old copy of the settings and it fixed the problem, so I'm thinking something in the registry corrupted since the last time swx was used. Any idea if a legitimate system option could cause this, or would it more likely be a mystery corruption thing?
thanks, bill