I got it going by alt and tabbing and then tabbing back (whilst in black screen mode) in and working on the settings from there. It runs in windowed mode at least
What amazes me is why does it run at all? If what you say is true, how come I can run it at 85Hz and even 100Hz (still the occasional flicker) but if it is because of the non industry standard timings, surely it wouldn't work on my 290X full stop?
I've also had the 295X2 running at 120hz on the ASUS ROG (ran really smooth), this is of course all amd card supposedly don't work well? :S