How to stop PhpStorm from re-indexing every few minutes

I've got PhpStorm 2.0 setup on my Ubuntu 10.04. I've setup 2 different projects in the past, and in both of these projects it only indexes upon opening the project. In this project it re-indexes every few minutes. All 3 of these projects have been hooked up to Subversion. I have a theory that it is re-indexing after Subversion updates, but I'm not sure.

How do I disable Subversion auto-updating (if that is the issue), or how do I disable re-indexing?


Thanks ahead of time!

Rob