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The problem with vacation auto responders like 'vacation' for sendmail is that spammers often fake the From: address. Auto responding to these addresses can get your mail server blacklisted. To avoid this you can setup your autoresponder with procmail and, if you are running a spam filter on your machine, you can tell procmail to auto respond only if the X Spam Status header is 'No.'

One of the great new features in Fedora 8 is the inclusion of the PulseAudio sound server. PulseAudio allows multiple streams of audio to be played at once, eliminating the worry of having your sound card locked up by another running program. There's also a handy volume control applet that will let you set the volume of each audio stream independently. That's right folks, listen to your MP3s, watch (and listen!) to a YouTube video, and voice chat with your IM buddies, all at the same time and with independent control over each program's volume. Setting up PulseAudio is very easy.