1. Erase and install of Tiger from it's disk. (optional installs or something once a drive is highlighted).
2. Run Software update and install all but QuickTime 7.0.2. DOWNLOAD from Apple the standalone installer, then install it.
3. Install FCP 5.0
4. Run software update and accept it all or not... but if it's part of the Pro apps, Install it.
You'll be as "clean" with software as possible, from here anyway. It's the most reilable and stable I have, but have an older UL3D card, and an ATTO Fibre card and Huge 4 gig array, so not quite the same as yours. All latest drivers, flash routines, you name it... Kona 2 system. Latest software. I run all other apps from my 1.3.8 backup system I keep on another SATA BTW, no problems. Gotta say, even keep FCP project files there. They run from their own drive that way.
Jerry
Apple Certified Trainer
Author: "Jerry Hofmann on Final Cut Pro 4" Click
here
Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D