>But I have never experienced this problem before with any other forms. This form is launched from another form also and it doesn't return any error. The only difference here is that it is launched from a class instead of just a form. It is included in the app too. I will do some testing and verify my path and current directory when it is attempting to launch the form. It is strange that is works though when I build the app and choose recompile all files.
>

You're right. If it its included in the app, it should find it, no matter what the PATH is. (I was referring to the IDE)

Then the only question left is: what can a recompile all do/change ?

->> any changes made to an #included file since the last compile/edit ??

Like you say, it is strange. And there must be a reason ...