Barbara hints at something that doesn't hurt to point out. During initial development, I find it very helpful to comment out _screen=OFF, app.visible = .f., and lockscreens, until I _know_ that the mechanics are working.... Then, gingerly, do one at a time.

I definately suggest this in this case, since you _do_ lose access to VFP. Anybody know a way to "sneak" back to _VFP when it's visible is false?

...snip
>>But when I use this setting,(SCREEN=OFF) the application disappears off the screen, with no icon in the start bar. The only way to quit is to Ctrl-Alt-Del. ...snip
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>Bernard, you DO have a READ EVENTS in your code? If you remove the Screen=OFF setting and put APPLICATION.VISIBLE = .T. does you first form show up on the VFP screen?