smartboard projector problem

[mikecain]

hi there

 

this one is a beauty and has got me scratching my head a little, we have just installed a new smartboard 680i with uf75 projector, all seems well until connected to the pc and the image is flickering like hell, i tried another desktop and that is exactly the same, however during my investigations is hooked up a laptop and it worked perfectly fine, no flickering or flashing.

 

i checked the displays and refresh rates and all 3 machines are set to 1024x768 at 60Hz, any ideas on why the hell it should be doing this when they are all outputting the same display signal?

 

any help is would be very very welcome.

 

cheers

[mikecain]

i have sorted the problem today, if anybody interested the problem was caused by ground loop inteference due to the projector being on one electrical ring and the projector being on another electrical ring. a quick bit of cabling to get them both on the same ring and the job is a good un.