Even with a clean install of the base MacOS 9 and Java, if I add version 1.3.9 of the MaxPowr extension, my system hangs hard just after the MaxPowr banner window appears below the boot-up window.
Without that extension (or with the shift key down to block all extensions), the machine boots fine, but is slow since it hasn't enabled the backside cache.
I'm going to open my system tonight to read the serial number off the card so I can ask Newer directly (What a pain!), but given their "don't call us" response regarding ever supporting OS X, I have little expectation of any solution from them. Once they have your money, you can forget it. If they were on the ball, they'd already have an upgrade out, but alas the latest version is from July.
So has anyone else run into this or know of any solution?