I have a client that installed our VFP 3.0 product on OS2 Warp4 and runs it in a Window. Everything runs well except a particular event that has over 20 files open and then it terminates the program and returns to the desktop with out an error message. The command that it terminates on every time is a simple append from a dbf to a cursor. I suspect configuraton problems, however I do not know anything about OS2. Can anybody help??