USB mouse in X

[Tim Hodgson <thodgson@pobox.com>]

Hi,

I've just installed potato on a Mac 9500, and it's all (more or less) 
OK except for the mouse. This is a Logitech USB mouse attached to an 
Entrega PCI card. The combination worked fine under LinuxPPC and YDL, 
btw. The puzzling part is that _occasionally_ the mouse will move for 
a few seconds, then nothing. No response to clicks. I'd assume it was 
a hardware problem except that it's fine under MacOS and was fine, as 
i said, with other distros. I've tried all kinds of settings in 
XF86Config; it's currently set to IMPS/2 protocol, with /dev/mouse 
symlinked to /dev/usbmouse.

Any clues, anyone? Could any other misconfigured part of XF86Config 
be affecting the mouse?

thanks,
Tim