Can you restore a saved 6.1 and a 7.1 database to a upgraded MCD 4.0 system. Heres the deal....I have 2 different customers. One w a 6.1 700 user LX 330. Can I upgrade the memory to 512mb and manually install the MCD 4.0 software then restore the 6.1 database? I know abot the new licensing password but just need to know if its possible. My other customer has a MXe 3300ICP controller w 7.1 software. I will be upgrading the hdd and memory and performing a manual install of MCD 4.0 on the new hdd. Will I be able to restore the 7.1 database? Any advise would be greatly appreciated. Thanks