I'm using latest Skype version (4.2) on Windows XP SP3

My computer keeps restart when I click "Accept" button on Skype call

Windows Update is running and I've already installed all updates

What's wrong with my computer? How to fix it?

EDIT: I only see this error in Event Viewer

Event Type: Error
Event Source:   System Error
Event Category: (102)
Event ID:   1003
Date:       3/2/2010
Time:       3:47:50 PM
User:       N/A
Computer:   TUANANH
Description:
Error code 1000000a, parameter1 ffffff94, parameter2 0000001c, parameter3 00000000, parameter4 80537bf1.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 53 79 73 74 65 6d 20 45   System E
0008: 72 72 6f 72 20 20 45 72   rror  Er
0010: 72 6f 72 20 63 6f 64 65   ror code
0018: 20 31 30 30 30 30 30 30    1000000
0020: 61 20 20 50 61 72 61 6d   a  Param
0028: 65 74 65 72 73 20 66 66   eters ff
0030: 66 66 66 66 39 34 2c 20   ffff94, 
0038: 30 30 30 30 30 30 31 63   0000001c
0040: 2c 20 30 30 30 30 30 30   , 000000
0048: 30 30 2c 20 38 30 35 33   00, 8053
0050: 37 62 66 31               7bf1