ESQWUARED  Sorry about that! If you haven't found it yet, I've released version 4.2 which fixes this problem. It should appear here on macupdate, shortly, but in the meantime you can find it directly on my site.   
(Version 4.0)

ESQWUARED  Just as a note, you can also easily place the Festive Lights widget directly on the Desktop for continual viewing by turning on Dashboard development mode. There is a small section on my website describing how to set it up.  
(Version 3.1)

ESQWUARED  Just a note: version 2.0 fixes the case-sensitive filesystem problems.  
(Version 2.0)

ESQWUARED  Hey cassiotones, I'm glad you liked it. I wanted to get some more feedback directly from you, because a few of the bugs you mentioned I've specifically tested against and haven't seen myself.

In particular, command-F and esc should both exit fullscreen mode (and the widget should definitely not move around the screen). Additionally, I've seen the scrubbing problem only once, and couldn't repeat it. Let me know if these problems recur.

Thanks!  
(Version 1.0)

ESQWUARED  All of my widgets run semi-regular update checks in order to alert you when new versions become available.

While it is some network activity, it's quite lightweight and isn't transmitting any personal data to the server.

Still, I hope you enjoy it.

- Eben  
(Version 2.1)