Hello

I have a problem with a the external PS2 mouse and built-in pointer device.
Both work properly on AC power. But when on battery power, both behave
totally erratically and are unusable. The cursor doesn't move at first but
then jumps around unpredictably, and menus open even though I haven't
clicked a button. Switching on the AC power again partially restores
normality, but the mouse buttons may not work properly, eg left click acts
like right click.

Behaviour is the same in both Windows 98 SE and Mandrake Linux 10.0.

A further strange feature is that if I have a USB mouse plugged in instead
of PS2, that works, and in Linux only so does the built-in pointer.

The PC is refurbished 2nd-hand, bought a week ago. Everything else seems to
work, at least as far as I have hardware to test it.

Any ideas?

....John
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