MOUSE PROBLEMS SINCE WIN98 UPDATE

RECENTLY WINDOWS 98 UPDATES WERE DONE TO A SYSTEM. EVER SINCE THEN WHEN THE COMPUTER IS FIRST BOOTED, THE MOUSE WILL NOT DOUBLE CLICK AND DOES OTHER STRANGE THINGS. WHEN THE SYSTEM IS CONNECTED TO THROUGH REMOTE CONTROL, THE MOUSE DOUBLE CLICK SPEED CAN BE CHANGED AND THEN CHANGED BACK, APPLIED, AND THEN THE MOUSE WORKS FINE UNTIL THE SYSTEM IS REBOOTED AGAIN. YOU CAN NOT GO ON THE SYSTEM ITSELF AND CHANGE MOUSE SETTINGS TO FIX THIS. WE USE LANDESK TO FIX THE PROBLEM. ANY IDEAS WHAT I CAN DO TO RESOLVE THIS?