I have several GB free and SETI works fine! What to do? Please see the message I get:

2005-07-22 07:10:26|climateprediction.net|Message from server: No work sent
2005-07-22 07:10:26|climateprediction.net|Message from server: (there was work but you don\'t have enough disk space allocated)
2005-07-22 07:10:26|climateprediction.net|Message from server: No disk space (you must free 100.0 MB before BOINC gets space). Review preferences for maximum disk space used.
2005-07-22 07:10:26|climateprediction.net|No work from project
2005-07-22 07:10:27|climateprediction.net|Deferring communication with project for 23 hours, 59 minutes, and 58 seconds

Forgot to tell that this directory is empty:

C:\Program Files (x86)\BOINC\projects\climateprediction.net

You need to set some figures in your general prefs.
Go to "Your account" to the left of here, and allow it 1-2 GBytes.