Magic trackpad freezes from time to time
I upgraded my 27-inch iMac(Late 2009 model) to OS X 10.9.1. Then I started having a problem with the magic trackpad - it freezes from time to time. I searched the forum and tried multiple things suggested by other users, but the problem still exists today. The only way to let it unfreeze is to click the power button to turn of the screen and click again to turn it back on. But after a while the magic trackpad freezes again. It's very annoying to keep turning on and off. Eventually I have to reboot the machine.
Does anyone experience similar issues? Any ideas of how to fix this for good?
iMac (27-inch Late 2009), OS X Mavericks (10.9.1)