Spotlight starts indexing automatically - weekly?

Dear all,

In the last 3 weeks, my MacBook Pro (OS X 10.5.2 + latest updates) has started indexing my internal harddrive twice without me telling it to do so. Hard Drive Utility tells me everything is ok with the drive, I did not reformat / reinstall Leopard on it, no crazy 3rd party system maintainance software running...

How did this happen? And, more importantly - can I do something to prevent this from happening next week? I'd appreciate any suggestions...

Pit

Thank you.

I deleted that file (in ~/Library/Preferences) and restarted. However, the spotlight database did not rebuilt itself automatically, and there is a new file in place. Am I missing something?

But maybe that was enough already. If I do not post back here, this has solved it for me eventually...

Pit