usually a one year warranty though double check this
unless you purchased optional coverage
now please try this first
connect a usb mouse if you havent done so
right click my computer icon on desktop or start menu
go to manage
go to device manager
check status of pointing device
if it says ok then
uninstall
restart computer
it will reinstall driver
if it says fail write down trouble code
and google the code online
first thing you do before anything else