Fedora Users — Frequent crash in FC6

my computer: P4 CPU, 3.2GHz, 2.0GB RAM, video card NVIDIA GeForce FX600, 2 harddisks, each 120GB, with winxp and fc6 respectively.

the version of fc6 is 2.6.20-1.2933.fc6xen.

it often crashed or got restarted automatically, sometimes reporting messages as follow:

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: iret exception: 0000 [#1]

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: SMP

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: CPU: 0

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: EIP: 0000:[<00000000>] Not tainted VLI

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: EFLAGS: 00000000 (2.6.20-1.2933.fc6xen #1)

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: EIP is at 0x0

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: eax: 00000000 ebx: 0811853f ecx: 00000073 edx: 00110202

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: esi: b6afcb60 edi: 0000007b ebp: 00000000 esp: e96de01c

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: ds: 0000 es: 0000 ss: 0069

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: Process beagled-helper (pid: 4082, ti=e96dd000 task=e96c8c70 task.ti=e96dd000)

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: Stack: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

Message from syslogd@localhost at Mon Apr 2 21:23:35 2007 ...
localhost kernel: Call Trace:

how can I solve this problem?

Many thanks!