I had a laptop Fujitsu siemmens amilo 1840, 512Mb ram and Ubuntu Feisty.
I pludged a new RAM module in my laptop and my fujitsu siemmens has 1Gb RAM
now.
When I switch on the PC, Feisty doesn't play any sound. I restart the PC in
Windows XP and I can play sound on XP.

I try to run the liveCD of feisty and the PC cans play sounds on liveCD.

I don't know how can I repair the problem