various issues

[Jose Manuel Velasco]

Hello everybody;
  I've installed Ubuntu few weeks ago and it worked fine. Now i have bought a 
new system (amd64) and i've decided try with kubuntu.
  Well, now the issues:

  1)When I've installed Ubuntu I registered to the Ubuntu Community, but I 
take always this error when i login:
Site error
 This site encountered an error trying to fulfill your request. The errors 
were: 
 Error Type  
UnicodeDecodeError 
 Error Value  
'ascii' codec can't decode byte 0xc3 in position 24: ordinal not in range(128) 
 Request made at  
2005/05/06 17:56:42.796 GMT+1

  2)I listen to the sound system, but i can't listen music. Also, always i try 
to run any sound file (mp3) the program crash telling something about 
soundserver error. Then, i have checked messages and daemon and i have 
noticed this things:
messages:
...
May  6 18:48:26 localhost kernel: UDF-fs: No VRS found
May  6 18:48:26 localhost kernel: Unable to identify CD-ROM format.

daemon:
...
May  6 18:44:47 localhost udev[8414]: creating device node '/dev/vcsa3'
May  6 18:44:56 localhost kdm_greet[8509]: Can't open default user face
May  6 18:45:01 localhost hald[7686]: Timed out waiting for hotplug event 
1236. Rebasing to 1394

I don't know if they are relation with my sound problem, but they don't seem 
to be good messages neither, so if somebody can guide me with this i will be 
thankfull.
Thanks in advance.

Regards.