Kernel version x device problems

[Marcelo Magno T. Sales]

Hi, people

I run FC4 on a system with a ASUS K8VX motherboard and a ATI 
All-In-Wonder 9000 pro video card. I've noticed today that ATI drivers 
(RPMs downloaded from livna) are no longer working. I'm using kernel 
2.6.12-1.1456_FC4 and the following messages are logged at boot time:

[fglrx] module loaded - fglrx 8.16.20 [Aug 16 2005] on minor 0
[fglrx:firegl_unlock] *ERROR* Process 2930 using kernel context 0

The number of the process changes every boot, but the process is always 
/usr/X11R6/bin/X.
However, the drivers were working before, with this kernel version and 
with the preceding ones too. I didn't notice when the drivers stopped 
working, so I don't know after which update they began to fail.
If I update the kernel to one of the available 2.6.13-*, the ATI drivers 
work ok. However, both the onboard sound and ethernet stop working (!).
Any clues? Anyone else with similar problems with kernels 2.6.13 and 
ASUS K8VX onboard devices?

Thanks,

Marcelo