Hi Matt,

One other note on this problem…

If I don't try to put my columns in UltraGridGroups, I don't have any problems.

Thanks Matt, but the columns I'm trying to get rid of are NOT bound.  I have 2 Bound columns columns, but then a few unbound columns that I want to clear out.  I have attached a sample grid that shows my problem.  Try running it, and then change the number of rows or columns that are supposed to show.  You'll hit the error that way.

Thanks again for the help,

~Karen