Save as .dwg error

I loaded SW 2008 last week, and yesterday I generated myfirst assembly drawing using the new version. Today when I tried tosave the SW drawing as a .dwg to send to my customer, SW crashed.Attached is an image of the error that I keep getting. I can hiteither Retry or Cancel and both give the same result - SW shutsdown. I can try closing all programs and uneeded processes to freesome memory but it doesn't seem to help. The same thing happenswhen trying to save as a .dxf file. Other file types (PDF, JPG,etc.) seem to work fine. Has anyone else experienced this?

Thanks
~Jason~SolidworksDrawings And Detailing