AeroGlass from Windows API Pack Transparency Issues

I decided to have a play around with the Windows API Code Pack and so far it has had some very interesting things. Something which I like in particular is AeroGlass.

I have created a project to mess around with it to see how it works etc. and I am having some difficulties with the tranparency. If I put a textbox on the form for example, it displays fine. The text however is barely readable unless the form is over a dark background.

The solution seemed obvious. Change the transparency key. However, there wasn't one set. Adding one stops the glass effect from working.

Has anyone encountered this before?

Urgh... I hate having to bump things. Lets see if I can add any more information to justify it.

When I draw directly onto the form I have no problems at all. Everything works fine.

The problem exists with things such as buttons also, where the edges go a bit funny.

Last attempt here. Someone must have something?