Well, I've spent most of the day trying to recover from the damage this 'fix' inflicted on my box.
Problems that I can't even remember were fixed only to be replaced by other, far worse problems.
I MISSED WSBK SUPERPOLE !
Before chucking the whole lot out the window, inc telly, furniture, cat etc + beginning the long journey of tracking down The Reaper to horribly murder him, I thought I'd give it one last try . . . .
It seems my box is very susceptible to exactly which USB stick is being used. I used my latest and fastest stick and all seems well. A working EPG at last.
Cheers Reaper, you are forgiven.
P.S. These boxes are Vgood for all this learning curve at a cheap price but what's a good step up? Budgets currently around £100 - £200 ?