Although this laptop is a nice piece of hardware for Linux there are quite some problems with the sound card. With the latests Gutsy sound is fine but the mic don't work. Neither the build-in nor the external jack. The is sad because the laptop is really nice otherwise but for people who want to use VOIP this machine is not recommendable. Maybe that can be fixed soon but till then don't touch it if you need the mic. This problem occurs 32 and 64 bit.