

This occurs only when the screen is first turned on, and lasts anywhere from 10mins to half an hour. Occurs on multiple inputs (well, UHF and HDMI, which is all i use, didnt see a reason to dig out any RCA cables) and on menu screens aswell.
I have been in touch with samsung this morning (as its only 13 months old it's still under the 2 year manufacturer warrantee). I must say that so far i'm impressed with their phone support team, and am now waiting for a phone call from one of their service techs to arrange a time to have a look at it.
Just thought i'd make a thread about my experience as it happens given i know theres a few samsung panel owners around these forums.
More info as it happens.