7th September 2012, 12:05 PM
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Member
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Join Date: Jan 1970
Posts: 4,365
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The black screen is the boot menu showing an error.
The first thing to try is to put the USB into the rear USB ports and not the front.
The computer boots from rear USB first.
The rear USB ports are usually faster than the front USB as well (more power on older computers).
CAUTION:
Have these USB devices worked on this computer before?
You may have to go into the bios and configure it for USB keyboard recognition.
If you muck it up you can mess the whole thing.
Please give me the computer model and I can walk you through it.
EDIT I see it just started happening, so either you plugged the USB device into a dead or slow port, or you lost power and it cleared the memory.
Did you unplug it from the mains, have a power outage, or power surge?
The little battery that retains the settings when power is not available is probably carked.
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