>Why does it only work with a top level form???
Sorry, don't have an answer for that. Although I would guess it has to do with the way VFP paints forms in the VFP screen.
Roi
'MCP' Visual FoxPro
In Rome, there was a poem.
About a dog, who found two bone.
He lick the one, he lick the other.
He went pyscho, he drop dead!