A customer is sometimes getting the message "Bad file name or number" when selecting 2009.MAR as Time dim in an input schedule (double clicking an EVCVW formula). Unfortunately the error is intermittent; he says he gets the message 2-3 times and then it works OK. He can change it to other years / months, and he can change the Entity. 2009.MAR looks just like any other in the dim list. Anyone seen this one before? (MS7.0 SP3)