Trying feathers screensaver, i just found that if you change screen mode, for example 640x480 instead clone actual screen mode, it runs with small jumps. I have changed feathers sdl example, to run at same resolution, and it works very well, it have small jumps also, but only a few, it works fine most of time.

Edited:

After some testings, it doesn't work fine as i said. I have added SetTaskPri to set an higher priority, but it makes small jumps.

[ Edited by BalrogSoft on 2011/2/6 2:37 ]