I'm using the Xeno chip and whenever I try to play a PAL game I get banding. Every other game is fine, just not the PAL versions. Any ideas or just not possible on Xeno?
Try holding either Y or X on boot. I don't remember which one does which, but it's supposed to force the video mode to a specific region. One forces NTSC, while the other forces PAL. If you have a version 2 XenoGC it may work just fine. It didn't work for me when I tried it on my younger brother's GC with the original XenoGC chip though.
On my old PAL gamecube, that wouldn't play NTSC games but would play PAL, even if i forced regions, but that wasn't with a xeno, i think though it was because i used unbranded DVD-R and didn't change the POT till a later date.
Ahh.. i see.. then again why would you want PAL when most of the downloaded backup games are in NTSC!