For example, a CPU overheating will yield similar results. See if you can rule out either software or hardware. I would suggest examining your NT event logs and running perfmon to see if a process is going awry. If you can't determine for yourself why this is happening, it would be very difficult for someone else to tell you how to fix it.
Are you looking for someone to tell you why your computer freezes? That can be any number of causes both hardware and software. But you've only stated that your computer locks up. Anyway, I have used FL in the past, many times and I've not had a problem with my computer locking up. some 270 tags per screen? Must have a lot of alarms. You have 4,000 digital tags and only 15 graphics screens? That's what.
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