I bought Humble Indie Bundle V and Psychonauts has no music. I mean, I can hear the sound effects and the characters' voices, but there is no music in any of the levels where I know it should be playing.
I've tried changing the setting in the Audio menu but that didn't work... I installed the graphics drivers for my ATI Radeon HD 4830 through the Additional drivers menu and also the landscape sometimes seems to be flickering whenever I am outside (only the grass).
I am running Ubuntu 12.04 LTS.