just an update to elaborate on the problem:
i understand it would have been very helpful to include the whole, exact, original error message that i got. however, i was in the middle of a snooker game, and snooker games are timed, and i was trying to hurry back to my game.
i just rebooted my whole system, and i'm still getting the blank error message i described. (when it originally occurred during my game, it said something, but now, every time i try to log back in, it's blank).
i'm running iceweasel 11.0 (which is identical to firefox except that it's rebranded to exclude proprietary trademarks)
and i'm running a debian based linux system.
i have never, ever seen this problem before.
i suppose i could try to update my java software, icedtea, or whatever, but that is so extremely difficult on my system that i'd probably rather re-install the whole operating system from scratch. so i'm not sure i want to do that right now. hopefully i will get some response or it will somehow be fixed on flyordie's side. though if it does start working again and i don't know why, then i see no reason for it not to happen again, so i would prefer something be done (my end or flyordie's) so that i can have some assurance that this won't happen again.
and plus, here and now, i am formally requesting that if i lost points on that game, that those points be returned. it may seem like nothing, but in all fairness, that is what should happen.