Hi Scott --
Since you are using a multi-select field for dates extracting the individual month when there is more than one option selected creates a problem. However, if you convert those dates to a linked table, the start month can easily be pulled.
Ok, so I sat back and looked at the data I was using and it came to me that I made a mistake when designing the table. The month data was poorly thought out. I changed it and now I do not need to get the month out. I did not need a compete mm/dd/yyyy in the field I only needed the month name. That made my need easy to get. Thanks for the help and answers. Best, Scott