Right ok I think I have found a really quick fix ... the problem seems to be the light from the plasma screen glaring ever so slightly over the lcd receiver on the set top box (the bit with the yellow digital numbers) It kind of blocks the signal from the remote.
So here goes I have the plasma wall mounted... the set top box is in a unit set back as far from the front as possible but not quite far enough into the unit to stop the glare shining from the plasma.....
Then I tried putting an empty dvd cover ontop the set top box protruding over the top of the ldc receiver as much as possible...enough so it blockes the glare from the plasma or lcd screen (As if set way way back into a deep cabinet) ... you may need to experiment a bit because your's maybe set up differently. MINE WORKS NOW..... which is a relief because I like the Virgin Package...
If Richard Branson is out there.... here's a little tip, So the current pace boxes are not wasted and to save and keep all those customers happy. all Virgin need to do with all their marketing tools is to create a very small attatchment that clips to the top of the unit and makes the receiver recessed as much as possible...
The cool thing is now i point the remote at the receiver... and it turns over ..... without pressing the numbers about 30 times and ending up on a freaky channel...
It worked for me..... obviously if you try it you need to do it in such a way so as to now cover up the vents at the top....
I hope this helps....