I'd like to replace my Windows with Ubuntu 12.04 or 12.10 32bit. I made several tries already. Installation process works very well, but first problems occur when you restart the laptop. Grub2 lets you boot into Windows without any problems but Ubuntu very often gets stuck somewhere after loading drivers for pcmcia (yenta_socket). I have this occasional boot-up freeze with other Linux distributions, too, e.g. Knoppix.
Could this be due to the Nvidia Geforce 420 Go? I don't understand why it sometimes boots into a perfectly running Ubuntu with transparent Aero-like surface (Vista or Windows 7 don't support Aero on this card by the way) and in most other cases it gets stuck. What can I do to work this out? I can assure that my hardware is checked for errors and my BIOS is the latest.