I am trying to upgrade an old solution from .NET Advantage 2006 (not sure volume, 3 I think) to .Net 2007 vol 3. I keep getting an error on one of the projects that reads: Index (zero based) must be greater than or equal to zero and less than the size of the argument list. Two other projects in this solution convert fine. Any thoughts. I apologize if this is not the correct forum. Thanks.