I used my laptop computer to do this install. It is an HP DV6 1268nr with a 2.2 GHz AMD Turion ZM-82 Dual Core processor, 4 GB of DDR2 RAM, an ATI Radeon HD 4650 graphics card and a 320 GB hard disk. I will be network installing Ubuntu Karmic (9.10) to half of this hard disk. I have done an install to this particular machine before and I know for a fact that there will be issues with the sound card and with the video card. For the card I will need to download a file from ATI that will install the proprietary drivers to the machine and for the sound I don't exactly remember what I needed to do to fix it.
Now when you reboot sound should play from the speakers.