Topic: Realtek HD audio
Many users report strange error messages in connection with Realtek onboard audio. The only "workaround" I knew of was to deactivate the chip. As my new laptop suffered from the same problem, I tried a new driver from Realtek's website, and lo and behold, no more error messages. Even Samplitude will now play nicely with the onboard chip.
Can't guarantee this will work with every other computer out there, but it's worth a try.