I Hit save & all my drawing views vanish

Hi folks -

I hit save & all the drawing views go blank.

If I rebuild after save - they come back.

But I do not think I should have to rebuild after a save - right....??

I also happens after a save as PDF.

This seems to be only a SW 2012 Issue.

Can Not remember this happening in 2011.

Any Idea's....??

Rich

SolidworksDrawings And Detailing