Chrome OS Update

I am very frustrated with my Chrome OS CR-48 test laptop. The audio has gone haywire on it! Instead of normal audio, all that comes out of the speaker is an electronic garble. Sometimes, after powering up, the audio will be fine, then after a period of time the garble starts. I have sent two reports through the "bug reporting" program and as far as I know, there is no real support to call on. Considering the computer was free, I guess I'm up a creek without a paddle. A majority of the things I do online involve audio, but I might still try to use the CR-48 on occasion.