I FIXED IT!!! ;-)
I remembered what I learned when running Windows 98 SE. You do NOT need all the crud that loads at startup.
So I used msconfig and unclicked everything except what I actually use in the notification area. Such as ATIRW2, anydvd, setpoint, ETC.
wHEN i REBOOTED TO LET THE CHANGES TAKE EFFECT MY MOUSE REMAINED LEFT-HANDED.
tHANKS FOR TRYING,
eRIC t.