I am using Access2007 and have an application I have written. Recently, the client has migrated SOME of the machines to Window7 64Bit. On those machines, some calculated fields do not update on the screen. On ALL the WindowsXP machines they do. MY development machine is Windows7 64 Bit and Access2007, and I don't have any problems. I have tried the MS forums, but no joy there. Any body seen this problem? I have found that if I reprogram the objects with .refresh, .recalc and .repaint then they show back up again, but I don't want to have to go through the ENTIRE application and do that on all the forms. It would be the full employment act for me, but I am sure the client would rather not foot that kind of bill.