Hi there. I'm using an ATI Radeon HD 4600 Series graphics card, and when I'm connected to my computer screen I get a minute rolling effect on my screen. I've tried changing the refresh rate and it didn't do anything. I recently connected it up to my new 40" LED TV and it was a lot worse with big white rolling lines. If anyone could help that would be awesome! Thanks!
I'm using a BENQ G900W LCD Monitor connected via VGA cable. I only used the VGA to connect it to the TV, didn't try the HDMi cable as of yet. I don't think anything is broken. I tried a different VGA cable but I'm not at my flat at the moment (with the TV) to try that out.