I have used [EMAIL PROTECTED] binary pachage for Linux since it was non BOINC (SETI Classic)
But if you can run BOINC client you could run [EMAIL PROTECTED], [EMAIL PROTECTED], Climateprediction.net or any other BOINC project. Anyway, check your account data (e-mail, pass and so...) it was rare problems with BOINC at the time I've used it.

