I'm terribly frustrated with my program.

I've written it in Visual Basic using Microsoft Visual Studio 2005, and it looks fine. It compiles fine. It works fine. Using these instructions, I've made a CAB file usable on mobile devices (the "test subjects" are a pair of HP iPAQs, although I've tried it also on my friend's Windows Mobile-friendly device), and after upgrading to .NET Framework 2.0, it installs fine.

But it won't run.

What I mean is, I click on the icon in the Start menu, and it gives me the little sonar scope "I'm working on it" animation. Forever. Left alone, it will do nothing until it runs out of batteries. If clicked, the illusion that it's actually going to run is dispelled, and the animation abruptly ends. I tried running it while the "current applications" window was up, and it doesn't appear there. It just plays the little sonar animation, and as I already said, I'm terribly frustrated with it.

Is there something I'm missing? Is there a component or event or form that doesn't work on mobile devices? Is there something missing from .NET Framework 2.0 that doesn't like Visual Studio 2005? It's maddening, and by all rights this should have worked by now, but doesn't.

Getting the nitpicking out of the way:
Yes, there's enough memory to run it.
Yes, there's enough space to install it.
Yes, it installs correctly, without any (visible) errors.

I'm sorry if this seems terse, but deadlines and unresponsive hardware are not friends of mine. Can anyone help?

Thank you.