I've got an Acer 5315 Laptop. Pretty much all the drivers stayed installed during the upgrade from vista.. with the exception of my ALPS touchpad. So i can't use the touchpad for scrolling... luckily it has a scroll key in between the mouse buttons. Nonetheless, this is a minor irritation. I tried running the setup file from Acer in compatability mode, to no avail. Also, W7 thinks that it's a PS/2 mouse, and won't let me update the driver. Any Ideas??