Hi robgenna and welcome to Linux,
about your sound card... just a guess but I would bet i810 chipset.
About your video problem with a resolution of 1680*1050, you have to write the modeline in your /etc/X11/XF86Config-4 file in the section monitor. U have to check back on the internet ( go to
www.linux-laptop.net/ and check what other did with your model of laptop). a quick search yield that:
# 1680x1050 @ 60.00 Hz (GTF) hsync: 65.22 kHz; pclk: 147.14 MHz
Modeline "1680x1050" 147.14 1680 1784 1968 2256 1050 1051 1054 1087
# 1680x1050 @ 75.00 Hz (GTF) hsync: 82.20 kHz; pclk: 188.07 MHz
Modeline "1680x1050" 188.07 1680 1800 1984 2288 1050 1051 1054 1096
# 1680x1050 @ 85.00 Hz (GTF) hsync: 93.76 kHz; pclk: 214.51 MHz
Modeline "1680x1050" 214.51 1680 1800 1984 2288 1050 1051 1054 1103
# 1680x1050 @ 100.00 Hz (GTF) hsync: 111.20 kHz; pclk: 256.20 MHz
Modeline "1680x1050" 256.20 1680 1808 1992 2304 1050 1051 1054 1112
(if you don't konw choose the one at 60hz and after edit your screen section accordingly)
does it help?
About the sound problem we would need more information: u use alsa? oss? which player?
if you don't know can u check cat /proc/asound/version? also... send the output of lspci can be useful to make sure of your sound card.
A.