JDS74, Thanks for the reply and the answer to the problem and the answer to why. Yes I have been coughing during the night for about 3 weeks which must be the cause and I should have thought of something so simple as a rubber band.

Again, thanks!

Has anyone had problems with their filters falling out? I use a PR System One and nearly every morning I wake up with both filters laying on the night stand behind my machine. Any suggestions would be appreciated.

Please send me link to download Encore Basic. XP-Pro Too old school or maybe too cheap to upgrade!!!