Hi Richard

Not aware of having Astropulse so I assume its the normal one. The system appears ok at the moment with the process running in background while I work. I've turned off the screen saver, reset preferences to default, then set max cpu to 70% and rebooted. The log shows its been doing analysis and upload/download ok for around 24 hours so I think I'll leave the screensaver off and not worry. Thanks.

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What sort of SETI task is running on your desktop? SETI has two at the moment - MB (short), and Astropulse (very long). There has been a reported bug in Astropulse "whereby the Astropulse screensaver would sometimes freeze": a new version designed to fix this is in the final stages of Beta testing.[/quote]