>I was doing neither. In the form designer, I had simply added it as another object. That was probably the mistake. Heck, I don't even normally do that, but it worked fine in a prototype.

You mean a custom object just sitting there? That shouldn't cause a problem in itself. Almost all my forms have one or two of those sitting on it. Does this object create another controls and store the object reference? Did you make references to the object itself somewhere else? Just to see whats up, would you mind posting the code for that object?