test the monitor on another machine and with a different power cord. if it still happens, you need a new monitor.
Herb...
I have a Hewlett Packard Vectra VL home computer. My problem is that sometimes, just sometimes, when I turn the computer on, the monitor does not come on. If I unplug the whole system and replug, the monitor will then come on. Any help will be greatly apprieciated.

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