Version: 18.0.1284.49 - Opera is up to date
Update stream: Stable
System: Windows 7 64-bit (WoW64)

Had problems with audio stuttering when playing youtube HTML5, and doing something else intensive on the computer at the same time (Loading another ad-loaded webpage was enough).

Sifting through the task manager revealed the problem. For some reason, Opera has decided that it is a good idea to run all Opera processes in BelowNormal priority. Manually set all processes to Normal, and voila the problem is gone.

Shouldn't this be corrected? Why run the browser in Below Normal task priority? Checked both IE and FF, both run in Normal.