Hmm.. looks like i found a solution, the problem was the theme wasn't a Aero theme, but that's kinda funny cause i changed to a aero theme then back into the other theme that wasn't a aero theme, then i turned aero peek off, but then i couldn't turn aero peek back on, so i tried to go back to the aero theme but even after i put the aero theme back on, i couldn't turn on aero peek so i tried to restart and it works now.