I own an Acer Aspire 5520G and just installed Ubuntu 12.10 alongside Win7 Ultimate. Both are 32bit. I am able to boot into either via GRUB. However, I am facing two problems:
The computer often freezes after booting up successsfuly into Ubuntu. The desktop appears and I can move the mouse, but the buttons on the mouse will not work. Sometimes I can't even move the mouse.
The wireless adapter is detected, but I am unable to add a wireless network and put in a passkey.
I'd be very grateful for any help.