My company does decor drawings for retail. We take the architects base plan, x-ref it into our drawing, and place our decor. We currently use AutoCAD 2005, but we save down to 2000. I have an architect who is having difficulty opening our drawings. She says she is using Auto Desk 3.3. She says that when she tries to open our drawings she gets an error message that components in the drawing were created in another version and can't be opened, it the crashes her program. Any suggestions would be greatly appreciated, Thank you.