I just removed the internal flicker fixer just to see if it was that that was causing me drama...
It's not. With or without it, if I load up DCTV and click on the corner tab to switch back to my Work Bench screen, the Amiga will lock up. If I load up It's paint app, I am fine, I can click on the buttons below, but if I click in the drawing area, or try to switch to my Work Bench screen, the Amiga locks up once again.
Likewise, If I boot up with my SuperGen plugged in, the screen rolls kind of like displaying a PAL signl on an NTSC television.
I'm really starting to think I need to purchase an NTSC A600.
My 1200 is PAL too, but I'm going to set it up and run the same tests on it.