Here are my experiments with picture freezing issues -
Bought an original box, installed the DW 1.5 image, but it was freezing average every 10 mins, on all channels (apart from the FTA channels). Tried the DW 1.6.2 image, that was marginally better. Although the signal strength was showing a consistent 95%.
I tried one of the yellow 'brick' booster, that helped alot, increasing the freezing to about every 20 mins. I then tried a Peng cloned box, this was again slightly better than the original box.
As a last gasp attempt I tried the Diorj 0.6 image. It's working perfectly, No freezing, no picture breakup. Not even a need to have the booster plugged in.
Diorj 0.6 (and Wiggy) I salute you!
Hopefully this will help someone with picture freezing issues.
bb69