I have not. Just emailed them. No communication...at...all.

I just did this very thing on the May LSAT-Flex. You're correct to be concerned because there is an "additional monitor" rule that says you can't use multiple monitors.

I verified this with a ProctorU tech support person the night before the test. My case, like yours, was that my laptop's monitor does not produce an optimal image and that I turn the attached (laptop) monitor off and connect an alternate monitor. The spirit of the rule (I guess) is that you cannot have multiple displays of the test running simultaneously. But as long as you turn one off, and have only one monitor running, you are not violating that. Just make the case yours is an "alternate" monitor, not an "additional" monitor. They let me do it with no problems.

Just finished the LSAT-Flex. Same problems here as others. 1) The connection was lost less than 5 minutes into the LG (session). The page in my browser just went blank and said my connection was lost. I contacted the proctor who resolved the situation in about 12-15 minutes. But he did it by searching for Google Chrome (I was on Firefox), opening the program, going through all the steps to recheck everything, and so on an so forth. By then I was so thrown off I made the decision to cancel this score. 2) The function of some of the platform was questionable, too. More than once I'd try to highlight and couldn't. Underline and couldn't. A few times I tried to select/deselect an answer choice and nothing happened.

There were just so many issues, this was a practice run for me. Not with the LSAT, but with the ProctorU platform. Maybe some of the problems will be resolved by June.