I agree they can be a it annoying. Perhaps there could be the option for the author to set whether or not it was compolsary to collect an email before install.
From a marketing perspective this feature is very important.
Hi, I think the Screensaver Factory is an excellent product. I think a very important addition is to add in the installation wizard the ability to collect an email address. This should simply send an email to the another email address predefined by the screensaver maker, that includes the email ...
It would also be good to see the ability to create a Windows, Mac and Linux screensaver with the press of one button. What killer ap you would have then.