Hi all Just recieved a RGB to VGA convertor c/w VGA cable from Lektropacks and am having a problem with locking onto the RGB signal from my grundig GDS3000 digibox into a Panny th37pw4 plasma PC input. Every so often the screen loses the sync for a moment, this seems to happen on programme scene changes and between adverts. I have configured my sceen to accept RGB on the PC input and sync on H&V. I have tried narrow and wide pull-in ranges and moved the clamp position to no avail. Any help or thoughts would be very welcome.