Flickering problem with Picturebox (not double buffered problem..)

[Spiffy577]

Hey all,

I have a htpc project that I am working on. The main program loads dlls which are basically other win forms. On each of these forms, including the main program, I use a picturebox (double buffered picturebox) for the background image and then draw everything on it by hand. Whenever I go from the main program to the dll, I get a weird flicker. It looks like it is the previously used double buffer. Is there any way to clear the background double buffer before the flicker?

Here's a vid of the problem:
YouTube - flicker

Notice the black screen with the white lines on it after I click "Movies."

Thanks for any help,

Josh

 

[Spiffy577]

In fact, here is another example. And it isn't only in the Movies plugin.
YouTube - movies