office 2007 programs randomly crashing

While using Outlook and Word, the programs will randomly shut down. Sometimes there's a "has encountered a problem and needs to close" error, and sometimes it just closes without warning. The info on the user's computer is pasted below. Microsoft doesn't seem to have any solutions. I have tried uninstalling the office suite and reinstalling it. I have run diagnostics, but it finds nothing. I appreciate your help. -Rochelle

computer:
OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 2 Build 2600
OS Manufacturer Microsoft Corporation
System Name TECHNICIAN
System Manufacturer MSI
System Model MS-6380
System Type X86-based PC
Processor x86 Family 6 Model 7 Stepping 1 AuthenticAMD ~1000 Mhz
BIOS Version/Date American Megatrends Inc. 07.00T, 11/30/2001
SMBIOS Version 2.3
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)"
User Name TECHNICIAN\Cody Fitzwater
Time Zone Mountain Daylight Time
Total Physical Memory 1,536.00 MB
Available Physical Memory 969.33 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 2.11 GB
Page File C:\pagefile.sys

Outlook:
Application name Outlook
Version 12.0
Build 6300
Product ID 81607-902-6441607-64417
Language English (United States)
Application Path C:\Program Files\Microsoft Office\Office12\
System Language English (United States)
Mail Support Not Available
Current folder Inbox
Current item Not Available

Error info:
Event Application Failure
Bucket ID 780286570
Bucket Table 1
Application outlook.exe
Application Version 12.0.6300.5000
Application Stamp 4760725d
Module unknown
Module Version 0.0.0.0
Module Stamp 00000000
Debug 0
Offset 58e37ffe