At <http://www.macintouch.com/> you'll find quite a long list of app's and hardware for which users have reported trouble with Panther. The Eudora mailing list has also had several trouble reports. Problems occur with every new OS release. Most of them get ironed out quickly. OTOH, I've had very nice s/w and h/w rendered useless by trivial OS upgrades. -Chuck, W1HIS