Rebooting again...

Hi, I have a Sound Blaster Live in my computer. I have it
updated to Windows XP, but every 4 hours aprox. a BSOD
appears in my screen.

The message from the BSOD says:
IRQL NOT LESS OR EQUAL 0x0000000a (0x4569e845,
0x00000002, 0x00000001, 0x805f5554).

I checked my memory with memtest 86 and all
was ok. Cpu and case temps are acceptable.

I have suffered another reboot today. The message
from the blue screen was different. Perhaps it will give
you another clue:
0x000000d1 (0xc8a29b3d, 0x00000002, 0x00000001,
0x81baf0ab).

And using the dumpchk command i have noticed another
detail. Near the unloaded modules (kmixer.sys,
drmkaud.sys, dmusic.sys, swmidi.sys, aec.sys,
splitter.sys, cdaudio.sys, sfloppy.sys) appears:
Timestamp: unavailable (00000000).

What does it mean?

Thanks.