Tommy,
Assuming you are using VFP 9, you can check in the "Task Pane" -> "New in Visual Foxpro 9.0" -> "Binding to Windows Message events" -> "File/Folder Shell Events" that will get you an almost immediate response once a file is created without wasting CPU in a loop
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges