Here, a tutorial how to render animations:
http://tatasz.deviantart.com/journal/Ch ... -485955963Make sure you:
1. Set the output directory
2. Set the stopping SL value appropriate for the render
3. Checked batch and stopping SL
4. make sure you are starting at the right frame
Your questions:
1. Stopping SL means the SL at which Chaotica will stop rendering a frame: once your render reach the SL value you set, it will save it and proceed to the next one.
As a sidenote, the SL value you set seems quite high - try rendering a single frame and whatching at which SL it starts looking good. You can usually do with something like 8 or even less with AA 2 and no ultraquality. Also, consider using the smooth mode.
2. To save transparent, tick "Save alpha" (under the resolution).