can anyone help with this please, I have a cordless keyboard and mouse working with an old desktop, suddenly I get a black page saying keyboard error or no keyboard present,........... changed the batteries, no diff. swapped the keyboard to my laptop....... works perfectly,.......back to desktop, same story any ideas?

get out the 22?

LG

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Try the desktop with a corded keyboard and mouse.
I have no idea what the significance of the result means , but worth a try.

M yes worth a try, lg SOUNDS LIKE YOU THINK ITS CARKED IT?

My little experience --- the cordlesss keyboard worked for a time, then played up. Eventually decided to 'dish' it, connected a cheap 'corded' one, no trouble since!!

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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