All channels flickering now

#1
I have encountered a problem where all channels are flickering (not a tuning issue)
So I removed and reinstalled the next progdvb version ProgDVB7.32.7Std.exe, but it's still the same.
latest windows 10 patches installed
latest amd rx480 drivers installed.

Re: All channels flickering now

#3
A bit more info, if I go full screen then I get a flicking box top left but the rest of the screen is ok.

RE: What video codec?
Err not sure, under video codecs, the top 2 (mpeg-2 and H264 AVC) say Microsoft DVT - DVD Video decoder.
The others are DMO decoders..

I don't know how I change renderers, I'll have a look at that link
Thanks