I have a calculation error that I cannot seem to resolve. Is there any documentation available to assist me with this?

Yes. When you run calculations, the Messages tab in the Reports module lists all issues found. With each issue, links to the online help system are included. You can simply click on a link to view the instructions that walk you through correcting the calculation issue. If you prefer, you can also print or review a PDF of the Message Maps by going to the Windows Start Menu / All Programs  AutoBid Mechanical / Documentation / Message Maps.