As soon as I updated to 9.1.002 all live youtube streams stopped working, my movie collection stored locally starting buffering or freezing every 30 sec then loads and continue playing .. seems to be a decoder problem, addon movies like fusion.org work perfectly no buffering... later I installed youtube alpha addon and live streams worked! but local movies reproduction got worst...
cpu: intel E5600
ram: 4 GB
video: Radeon HD4350 1Gb DDR2