Single screen or dual screen?
Single.
what Flatron exactly? does it have Speakers? Can you look into the monitor menu and look how the hdmi signal is handled (yes i use you now as some kind of reference point since i have the same graphics card and it works, maybe we can find some better workaround)
D2342 and no. Monitor menu doesn't tell me anything useful except that the signal is 1080p60.
I actually managed to get into the menu once with the unplug-HDMI-and-replug-it workaround found on Steam but didn't work again.