Our monitoring workstation running EVA ran out of hard drive space and spun an alert to send some logs.  We cleaned things up and have plenty of hard drive space once more (and have increased the margin for alerting).  But now, all of the hosts that were working fine are showing the Access Denied icon while they seem to "connect"  OK.  Scans, once started, run forever it seems and don't complete.  There is NO data now.  Having no data would likely be expected at this point but that should correct itself rather quickly - it isn't.  I expect that the two things are connected....

What to do?