I'm not running any apps on my Macs yet because I read (probably here) that it could heat older machines up too much, and mine struggle as it is. I'll wait till I get a properly air-conditioned apartment. *g* But I did e-mail our Windows IT folks at work to ask whether we were allowed to use distributed computing apps there. Since we are a scientific nonprofit, it seems rather a no-brainer that distributed computing is something we should support, provided it really won't interfere with the system. So the guy tells me today that he doesn't know what distributed computing is. *bangs head against wall* I understand not being fully up to date on all the details. I don't pretend to understand how it might affect a Windows network. But how can someone be hired, at a major _scientific_ organization like this, who doesn't even know what distributed computing _is_?