Plugin not showing Automated Update

I’ve just released the first update, 1.1.0, to my plugin Gravity Forms PDF Extended (http://wordpress.org/extend/plugins/gravity-forms-pdf-extended/) and I’m trying to test the automated update feature. The problem is WordPress won’t show there’s a new version to download (no matter how many times I hit ‘Check Again’ on the updates page.

I’ve tried modifying my Plugin’s Readme.txt file – http://plugins.svn.wordpress.org/gravity-forms-pdf-extended/trunk/README.txt – and run it through the validator and I still can’t find any problems.

Any help would be appreciated.