I have an nvidia geforce 7400 graphics card with 1 GB of RAM. Just did a clean installation of 11.10 Ubuntu. Everything is fine except for the youtube videos, apart from being a lil slow it stutters, esp the audio. I Disactivated the "Hardware acceleration" in the flash properties and also installed Flash-Aid and tried to install the versions it was recommending. But the problem persists. Is it an nvidia problem? What could I do to resolve the problem? Thanks!
Ok my problem is resolved after shutting my computer down and restarting it! Perhaps it needed a restart after changing versions in Flash-Aid and also the www.youtube.com/html5. Don't know exactly how it started working...