Thanks very much for your tip to check the backup location in my Preferences > Advanced. It was not set properly.
I've been trying to do what Terry suggested: Backup the project on the pc, burn the backup file to a CD and then load it in TMG on my laptop. With your suggestion, I'm now been able to perform the backup, locate it, and burn it to the CD. However, when testing to see if I can open it up back on my PC (before I try on the laptop), I've encountered another problem.
I open TMG and select Import from the options in the opening window. The Wizard automatically opens. However, I can only get as far as Step 2: In Import File Type, I select from the options "TMG v4 or earlier BACKUP (.sqz)." In File to Import, I find the file and finish the step. The Wizard automatically extracts the file I found. I should then be able to move to Step 3 (selecting where to put the file) but the NEXT button is disabled and can only click BACK, CANCEL or HELP. Any thoughts on why Wizard is locking up at that phase? (When I cancel the function, it says the import didn't complete.) Or is there a way I can circumvent Wizard and transfer/extract/open the file in TMG from the CD back into my pc (and eventually, laptop)? Thanks again for any help.
Gloria