I have a gun for both the CD-i and the 3D0, and neither of them work. I'm using a CRT tv which the zapper works on. I guess my main question is, is there one a specific thing like a transistor or something that goes bad on these that is easy to troubleshoot? The CD-i one has a box that sits on the tv kinda like the Super Scope, but it's hard wired to the gun. Any ideas are appreciated.