Thanks for the replies! We've already ordered new monitors, but we're keeping the old monitors to see if we can fix them anyway. I popped open one of the monitors about a week ago, but I didn't really do much investigative work - just re-connected the ribbons and wires. That capacitor info is kind of disheartening - of course, I should expect something like that from Dell We've got a soldering iron here in the office, and if we find that's the problem, replacing them will of course be easy. Again, thanks for the suggestions.