Why do I get a Drawing does not exist message?

BidScreen XL keeps track of where the drawing file is located. If you have moved the drawings to another location (another drive, another computer and/or another folder or subfolder) then you must update the Default BidScreen XL comment to the new location. If the drawing cannot be found, click on the Browse button and navigate to the new location of the drawing files and instruct BidScreen XL to to Update all the drawings or just this drawing.