Philips ProScreen 4750 Impact Multimedia Projector "cause double vision" Questions

double vision or shadowing. What can cause this? several reasons : 1.check cables, if too long and poor quality you get echoes in signal and shadows in the projected picture. 2.feed the right solution

...cause double vision of the text. Sure enough, the cable was loose and after tightening the text cleared up immediatly. can u tel me which section is the video card and i can order the replecment Dear ...