From what I understand and have been told, you should not install "Disk Warrior" or "Norton" on to your systems. They are notorious for making your system a little kooky. What is recommended is to use either of them as a boot up disk and launch the program from the disk. In this case, they both work very well. "Disk Warrior" being the preferred choice of most that I've talked to. Hope this helps.
PS--> Being that Panther is new and sorta a major upgrade, I wouldn't be surprised if either of the Apps run into some sort of problems. They might just release an update soon after.
~e