Outlook 2003 crashing everytime I exit the program

Hi

Everytime I close outlook 2003 on my laptop I get the following error...

Problem signature:
  Problem Event Name:APPCRASH
  Application Name:OUTLOOK.EXE
  Application Version:11.0.5510.0
  Application Timestamp:3f1380f0
  Fault Module Name:StackHash_8a00
  Fault Module Version:6.1.7600.16915
  Fault Module Timestamp:4ec49caf
  Exception Code:c0000374
  Exception Offset:000c33bb
  OS Version:6.1.7600.2.0.0.256.1
  Locale ID:1033
  Additional Information 1:8a00
  Additional Information 2:8a003479294b6808cf5404658ee876fc
  Additional Information 3:1acd
  Additional Information 4:1acdd3147041de6b864a66ae1ec90fd5

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If the online privacy statement is not available, please read our privacy statement offline:
  C:\Windows\system32\en-US\erofflps.txt

I have run all the PST files thru a fix program I found on the MS site but that did not stop this message.

Please help.

Thanks