Pete,
Let me start by saying that FSUIPC has and continues to be one of the most incredible utilities ever designed for Microsoft's Flight Simulator. I've been using the tool since FS2000 and am amazed at what it has offered.
Yesterday, I registered my copy of FSUIPC and while waiting for the key, went ahead and dropped it in the modules folder of FS9.
Like the previous post, I moved back and forth from full-screen mode and windowed mode in order to capture some screenshots for a review I'm working on for FS9.
On three separate occasions, FS9 locked up with a black screen and a mouse cursor flashing between hourglass and mouse pointer.
I thought about what had changed in my setup since I've been capturing screenshots in this manner since purchasing FS9 and have had no problem.
I removed FSUIPC from the modules directory and again, moved back and forth between full screen and windowed mode. After the removal of the .DLL, the lock up did not occur.
I'm writing to tell you about a situation. Not to place blame or insist that FSUPIC is the cause. In my situation, it was the only variable that had changed.
I will continue to look into this. I just got my registration via email, so I intend on installing the module again and will do additional tests.
Thank you for your hard work and dedication to the flight sim community.