Mac Mini is only a week old -- so freaked out a little at this apparent problem! First, Internet connection started to slow, then couldn't connect to any sites (cable modem). Mail and Firefox were freezing up, so I restarted, and when restarted, I had the spinning ball, the menu bar didn't appear, the HD icon wasn't on the desktop, and Finder wouldn't open. Internet is still slow as I type this on my PC, but it is getting through to most sites, at least. Suggestions?