I have version 0.9.10 (read from About page), and I also recently flashed my N900 with the latest eMMC and USA Rootfs images. CuteTube stopped playing and downloading videos after that.

CuteTube says "Playing '<VIDEO>'", but the screen remains black. Tapping the screen shows the player controls, but the slider bar doesn't move.

When downloading videos, they first show up as Paused, and when I click Resume they show Queued and a 1kb *.partial file is created, but no downloading commences. Then, they change to failed.

I tried reinstalling CuteTube twice, even with the --purge argument and reinstalling the Python dependencies (but not gstreamer).

I can watch youtube videos with the browser. KMPlayer works so I don't think gstreamer is the problem. Maybe it has to do with changes in the latest N900 image, have you tested that?

P.S. For people having trouble authenticating their account, paste the password into the textbox instead of typing it.