I'm running an Xecuter 2.3B Lite Plus modchip, and I recently purchased Silent Scope Complete (PAL) with the Sniper Scope. Now it works fine with the modchip turned off, the game also works with the modchip on, the problem is the Scope. The buttons all work but the light-gun bit doesn't, the gun won't move the target around the screen, it just doesn't respond.

Now this isn't a big problem, its a legit copy of Silent Scope Complete so I can play it fine with the chip off, it's slightly annoying but no biggy. But being a tech-head I'm rather curious about why this could be happening, as it would seem to be quite a bizzare bug.

Well, a light gun works by drawing a blank frame, followed by a white frame. Then by finidng when the photodiode senses white, it can determine where the light gun is pointed (based on the time it took, blah blah). But that of course doesn't explain why it doesn't work with the modchip on. The only thing I can think of is that your using a different video mode with the modchip on, of course that wouldn't really make much sense, as you would probably notice.

I bet your video mode is set to NTSC. Use enigmah video selector to switch to pal. Then it should work.

If you are doing a high def display light guns wont work in progressive mode