When signing up for a new website I use the auto-generate function of the Chrome plugin. The passwords are generated and filled in to the registration form, but those passwords aren't then saved to the 1password database. That means I have to go through a password reset process and manually enter the subsequent password into the 1password application.
This seems to be the case for some but perhaps not all websites. The most recent example of a site that didn't work was stitcher.com.
I'm using 1password 1.0.5 for Windows 7, Chrome 11.0.696.68.