>>Why do I have to rebuild my app. everytime I change the drive letter I keep the dbf files on. Even if I put set defualt to in my main prg file and do g:\data and put path=g:\data in the config.pfw file it still is looking for some of the data files from the directory where I built the exe file from.
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>VFP stores the full pathname of the tables in your dataenvironment.

This is not true. It stores the relative path.
If your table is in a mapped network drive and your form is on your local drive, then it would store the full path.

Your suggestion to set the database is still good, especially if you want to change this sort of thing on the fly.