An unexpected error has occurred

I was tired of looking into my mail for this, so i guess that putting in my blog was a easy way to get this info... How to show debug messagens in MOSS. Basically if have to change the web.config of the Web Application in question:

1.     Change CallStack="false" to   CallStack="true"

2.     Change customerrors mode="On"  to   customerrors mode="Off" 

3.     Change compilation batch="false" debug="false"  to   compilation batch="false" debug="true"

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