ok
lets uinstall it mate
right click on "my computer"--->manage---->device manager(or something like that)
then find graphic card dobble click on it
then go the drivers on the top of the window that pops up.
then
its 3 choices
updatedriver
uinstall driver
or roll back to previous drivers
try the update first
then uinstall if that does not work and then install the ati one
if thats not working roll driver back
pm or ask here if you did not understand it
lol, my laptop drivers are old.. think i have to update
nb. i have a Norwegian version, havent used the English version for ages... but the buttons is on the same place