a few more details that I should have mentioned before...sorry...it's a rear projection plasma screen...I mean this TV is not small...it's stands approximately 4 foot high...hahaa. So I can't exactly pop it in the boot of the car and take it to get it repaired...hahaa!!!
If I can't get it fixed it would be a shame it's a lovely TV!!
Will change the scart lead...and as it has 3 scart connections I'll try them all!!!
If there is any other sort of connector on the set (S-Video, Composite, YBpBr etc) it could be worth trying one of them if the scart change does not correct the issue, as it could be the SCART circutry failing or module coming loose etc...