Well I'm really ******* annoyed, I couldn't even manage half the race distance. Started off me getting completely blocked after the guy in front of me went wide 'its a fight' was his response, what a joke. Next, for the 3rd race in a row, the game froze then went black while the game was running which made me go off. Has anybody else had this bug?. Next, I get rear ended and get the 4xs as you do. Finally, which was my mistake, I put a bit of wheel wide and spun off. I was already really annoyed at this point so I couldn't be bothered after that.
Sounds like the run of attempts i had at Brands Indy in GT3.

Drivers who are similar pace and make impatient attempts, and significantly slower drivers who insist on fighting for some lowly position, those are my current frustrations.
I've had races where i've known i could make a pass attempt and simply backed off, with 2/3 of the race still to go, simply because i dont believe im faster than them (5th/6th), so we'll just end up fighting for the position, getting 4x's and letting those behind us catch us. Id rather just hold position, and hope they make a mistake. Im not really one to make a move to push for a mistake though, maybe in some circumstances but not in general (ie for a win).
Likewise, when you make a mistake and lose a handful of places, and your pull back a 3sec gap in 1-2 laps, clearly faster than the guy infront, but he/she insists on being defensive making us even slower. If the shoe was on the other foot, i'd be leaving the door wide open the first attempt. Why obstruct your own race by going slower, trying to hold someone up when you're almost certainly going to finish behind them. So annoying, and when its because of a mistake (your own, or someone elses) it makes matters even worse.
As for the black-screen, its probably unrelated, but i actually had something which sounds *similar* on Monday morning. I was doing a qual run at Suzuka, and i'd just crossed the S/F line and my left monitor went off and back on, 3sec at a guess.
I've no idea what caused it. It was short enough that i dont think it was the monitor going into standby (dont recall seeing a msg, but then i was driving at the time) and as it was in eyefinity mode, its all 1 display as far as windows is concerned, although iRacing is set to render the outer 2 separately, but then why not both outer monitors go off & on?
No idea if its related, and dont recall it doing it before now, the only thing like that i have is due to DisplayPort incorrectly deciding theres no signal and shutting down the monitors after it in the daisy chain.