We have fixed a few minor bugs. The most visible problem was related to how embedded document fonts were handled (I'll spare you the gory technical details). You can download Version 2.1.1.
I've also decided to follow Rick Brewster's tip (Have a Donate Button) by providing a link to the donate page when the update notification dialog appears. Let's see if this proves more effective than just the naked "Make a donation" button found on the main page navigation menu; but to know, I'll have to wait until I release a 2.1.2 version, as the new dialog won't show up for you now.
If you want to test the donate feature, you are welcome