I have just installed Mandriva on my Toshiba Tecra A4 notebook, using a microsoft wireless optical mouse. System installed seamless but, after first rebooting, mouse did not work anymore. Actually, it moves up and downwards, but does not move from left to right and vice-versa.

I have tried everything, but I cannot find the problem.

I changed xorg.conf file mouse section to be identical to the one at Ubuntu live CD, which recognizes my mouse like a charm, but it did not work.

Any ideas?

Thanks for your help,