Jim:
I did as you suggestted, but it didn't help. The file only has 1 record without an index. Contact me at mwtimpe@yahoo.com and I will send you the file.

I've been seeing this problem in other tables in our system. As long as we don't try to change the structure of the marginal table, everything works fine. However, when Stonefield attempts to alter the table, I get an error. I probablly have one of these tables that I could send you as well. I used a hex editor to look at the table and found a field "CODEDATA" followed by 0001. When I changed the 1 to a 0, Stonefield was able to do it's thing! (VFP 7.0 SP1)

Almost all of our tables are former Clipper tables that used Comix indexing.