I am running Win 98 with Access 2000, and try to open an .mdw on another computer(not through a server, just peer-to-peer) which has XP and Access 2000. I get the error "cannot open the file... it is already opened exclus. by another user, or you don't have permission". I can open the same db on other computers running Win 98 and NT. Is it an XP thing or an Access workgroup thing? Also, I CAN open the .mdw on my computer from the one running XP, but it defaults to read-only.