Quoted from PinMonk:1.00 is already installed at the location and the clock is ticking. Should know by Sunday-ish.
We have the same issue.
24/7 location and game locks up after about three days of operation.
I send a bug report to STERN but didn´t hear back from them yet.
I installed 1.0 software today and will try again, but I´m pretty sure it´s not fix in v. 1.0.
Guess they would have written it to the change log if it was fixed.
Let´s hope for the best, otherwise IRON MAIDEN is an awesome game !