The screenshot below shows the advanced properties for the seti applet that can be set.
If this option is checked, the seti applet will attempt to launch the seti@home client on panel startup.
This slider indicates the 'nice' value to run the seti@home client using. A value of 19 is the lowest priority with 0 the highest (COMPLETELY counter-intuitive, but talk to the creators of Unix).
Any extra command line options you normally pass to the seti@home client on launch are specified here. Try 'setiathome --help' for a complete list of valid options for your platform.
How often the user interface is updated, that is, how often the information displayed within the applet is changed (cycles between the five possible information streams).
How often the 'state.txt' file is re-read, hence how up to date the information displayed within the applet is.
This option should only be used if you have a multiple CPU machine and run different instances of the seti@home client from different directories, with the seti@home client executable residing in some other, third (or fourth, fifth etc) directory.
Most mortals do not need this option.