THe reason is one of the tasks has an issue. It can be many things causing this. I would try isolating the problem. Delete, the timesheet and process one task at a time to determine. My initial guess is that a resource has 5 hours
remaining and they are entering 6 hours, or something similiar.
Cheers
Michael Wharton, MVP, MBA, PMP, MCT, MCTS, MCSD, MCSE+I, MCDBA
Website http://www.WhartonComputer.com
Blog http://MyProjectExpert.com contains my field notes and SQL queries