Yep, this worked fine on the two machines that we run it on, both were desktop machines, haven't yet installed it on the server or tills as neither of these had the issue, will run it on those outside of operating hours.
FYI we're having this same issue this morning, I've tried calling both landlines into AMI as well as two of their engineers mobile numbers and am having no luck getting thru to anyone, glad to see it's not only us though.