Problems and solutions of Dell 4600c when installing redhat9

my Dell 4600c :
CPU :HT Pentium4 3E GHz
OS :Dual boot of Redhat9(kernel 2.4.20-8smp) and Windows XP
Memory :512Mb DDR-SDRAM
Hard disk drive :Ultra ATA 120GB
Optical drive :Slim DVD-Multi Drive (IO-DATA made)
Video controller :Intel 82865G
Monitor :Dell W1700 with LCD TV
Sound controller :Analog Devices AD 1980 AC97 Codec (on board)
Speaker systems :Creative Inspire 2.1 2500
Ethernet controller:Broadcom Corporation BCM4401 100Base-T

Three problems when installing Redhat9:
1. only use color depth 256bit in Xwindow 1280*1024
2. no detected and no work of the Ethernet controller
3. No sound

If you have a same system of mine,please refer to:
'http://www-2.cs.cmu.edu/~guyang/linux/linux_on_dell.txt'
you could resolve these problems.(remarks)

For the sound problem,I installed 'alsa-driver-1.0.5,alsa-lib-1.0.5,alsa-utils-1.0.5'
according to the manual

1)tar jxvf alsa-driver-1.0.5.tar.bz2
2)cd alsa-driver-1.0.5/
3)su
4)./configure --with-cards=intel8x0 --with-sequencer=yes;make;make install
5)./snddevices
6)chmod a+rw /dev/dsp /dev/mixer /dev/sequencer /dev/midi
7)tar jxvf alsa-lib-1.0.5.tar.bz2
8)cd alsa-lib-1.0.5/
9)./configure;make;make install
10)tar jxvf alsa-utils-1.0.5.tar.bz2
11)cd alsa-utils-1.0.5/
12)./configure;make;make install
13)modprobe snd-intel8x0;modprobe snd-pcm-oss;modprobe snd-mixer-oss;modprobe snd-seq-oss
14)alsaconf
15)alsaconf (again)

16) cat /etc/modules.conf
(you can see)
alias usb-controller ehci-hcd
alias char-major-81 bttv
alias usb-controller1 usb-uhci
alias eth0 bcm4400
alias .........

# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF verion 1.0.5 ---
alias char-major-116 snd
alias char-major-14 soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-intel8x0
alias sound-slot-0 snd-intel8x0
# --- END: Generated by ALSACONF, do not edit. ---

17) play /usr/share/redhat-config-soundcard/redhat-sample.wav
(If succeeded,you can hear the test sound)


But The CD player of redhat9 package did not work.(no sound)

I installed xine multimedia player. It worked well.

That's all.