>>>I have recently copied my project onto a new NT workstation. When I try to open some of the free tables I get the 'Memo file is missing/invalid' error message. I have tried copying the tables from a known good source and still get the error. I have made sure that there is only one copy of the tables. I get the error when I try to open the table from the command window and from the Project Manager.
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>>Hi, do you have the .FPT file with your .DBF and .CDX, if no, you must have one. If yes, try using FOXFIX to fix your table.
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>I do have the .FPT file with the .DBF and .CDX. The files are not damaged because I can copy them to another machine and open them with no problem.

I found it. There were some of the files marked as read-only (.CDX & .FPT). On the WIN95 machines it didn't matter, but on the NT machines it does.