EXPLORER WIRELESS MOUSE 2.0 VS SBC-YAHOO DSL

I've installed SBC DSL with Yahoo. The back & forward side buttons on my
Wireless Explorer Mouse 2.0 have stopped working in Yahoo or is DSL the
culprit?. (Works in the GBR ISP with dialup. Battery strength is good.) The
scroll wheel still works in Yahoo. The side to side function works (but is
still a useless feature for me). Is there a fix for for the side buttons not
working? (The wireless MS keyboard works as always, too.)

Since I am here with the Yahoo/SBC DSL problem, anyone know why my APC
biometric figerprint reader also will not function with signing into
Yahoo/SBC DSL? It does not even recognize that a password is present. Again,
it works under dialup GBR. Once I get INTO Yahoo it seems to work.
(Previously I had only one past instance when it would not work over a year
or so.)
.