Please upgrade to 2.3 here.
The 2.2 and earlier branches are no longer being updated.
http://files.sosguy.net/res/screenies/2009-07-01_2324.png - an image of what's happening.
When I try to sign in from any page that has a ReturnUrl, the value of the returnurl is http://://my path.
For some reason, there's an extra :// added in. Any idea how to fix this?