Got it resolved, Tree Branch just above the Dish. When I got there my Neice said there was no picture at all & signal level was down to 49% on channel 299. Pole plumb level was 88.8 degrees instead of the objective of 90 degrees. So we tried Skew and slight East an West adjustments and brought Signal Level back to 79%. Nothing more would help improve the Signal Level. The best we could get last Oct was 82%. Just a note we had to place the dish and tripod right at the back of her yard last Oct because there is an big high appartment block next door, and the only decent shot to the Horizon was way at the back of the yard near some trees.
So I noticed a small tree branch that was above the 60 cm Dish, as they had cleared & trimmed everything else. So I said lets cut that branch off as well. Now this branch was NOT in the direct line of site - it was definately just above the Dish, so we cut it off - and Bang Reception instantly went up to 97!! Checked channel 700 and reception level was also 97!!
Problem resolved, but still trying to figure out how a small tree branch now with greenery on it and above the Dish can affect reception that much ie 20 points, - but it sure did. Thanks guys for the help and I hope this experience helps others.