What are you using for playback if I may ask?
While not yet youtube, I've been having pretty good results (on p4 mobile 2.2Ghz) with the VLC2 (the flavour with streaming support) and archive.org (hint).
Audio generally is supposed to work, if you
first load 'alsa-config' and
then 'alsa'. If all goes well, likely you'll hear a 'plop' (which is almost music to my ears, at least the first time it worked) half-way through installing 'alsa'. For me, so far, this even works when I'm already booted into the gui desktop.
These 2 should also include the TUI (graphical terminal program) 'alsamixer'. The documentation states alsa starts muted and you must first un-mute relevant channels (using alsamixer),
but so far that seems false (not a biggy, sound doesn't start maxed out).
The thing that caught me off-guard for a long time, is that some laptops set the hdmi digital audio as primary channel instead of the expected analog ac'97 like channel.. Alsamixer can change channel ! But if you don't know this... you won't be having sound (over the speakers/headphone etc.).
While on the subject of impressive graphics, if you need VNC (remote desktop), then TinyCore's TigerVNC 1.1.0 (called as 'vncviewer' after installation), is absolutely jawdroppingly amazingly insanely and actually unbelievably fast and smooth. I have NEVER seen such a fast/smooth and really GOOD quallity vnc, and I have used a bunch on various platforms over the past quarter century. I kid you not, I can watch youtube fullscreen (1024x768) on remote machine and I wouldn't notice *at all* I'm watching over VNC... It's also not caching magic; menus etc or even games are just as smooth and instant as if i was on my local machine.
I'm *deeply* impressed (and thankful
) for that one! Whatever the magic is.. it is truly amazing. (It may be related to the server also using (a much newer) TigerVNC, but still, this is absolutely unbelievable).