Own a Barco Graphics 808, any ideas on hooking up a pc to it? Whenever I try my laptop via a vga to 5 bnc cable to port 4/5, unable to obtain a good image, i was told that i needed some kind of interface box between laptop and projector to enable the pj to sync in. Is this correct?? Also, anyone with convergence problems on top left hand side of image converging red and blue on green? Apparently, again so i've been told, a common problem with Barco's. it appears that the last two vertical lines on grid pattern are at different distances so that you are only able to converge one line accurately (applies to both red and blue). Anyone know of this prob?? Help appreciated as driving me slightly mad!!