CMM won't finish booting

Our Browne & Sharp Micro Xcel PFX 454 does not seem to fully "boot-up". We had an air system loss in the facility which resulted in an air fault/error on PC-DMIS. After air pressure was restored, we were still unable to perform a machine start and operate the machine. (At this point, the jogbox & LEDs were functioning, just no response from the cmm). We shutdown both the computer and CMM for the night. We turned them on this morning and ran into an issue where all of the hand control jogbox lights turned on as well as the probe head light, however the machine start button on the hand control kept flashing and all the LEDs on the hand control remained on. The PC-DMIS software displays a "CMM not responding" message. Typically, all of the jogbox lights come on momentarily, but then some of them go off indicating the machine is ready to go. At which point, a machine start and the homing process can be started.

Does anyone have any suggestions? The CMM power cord is plugged into a UPS with battery backup and surge protection so I don't think it is a power issue. I tried pressing the e-stop, powering down, restarting and disengaging the e-stop to no avail. I checked all of the connections, and tried unplugging & reconnecting the serial connector for the jogbox but that didn't work either. The error message is too general for me too fully understand what the issue is.

We are running PC-DMIS 2001 for Window (ver 3.2) on Windows XP. Any help would be greatly appreciated. Thanks-