This is ONE OF 2 responses to volume 4, Tomás Card Number 2 ("Can't INITIALIZE!")...
I am puzzled by the bizarre phenomena you describe (perhaps Robert will have more insight). I hope your disk drive is not acting up!
Could you try a simple experiment? Boot your machine using a startup disk so that the system on the diskette is in control of your machine. Then eject this disk and insert a blank to be initialized and see if you have any better luck.
Your problem may have something to do with the "boot blocks" which the system creates on new disks. There are utility programs which can write and edit boot blocks, but this is very dangerous stuff (especially where your hard disk is concerned)! Before fiddling with such things, we need more data. Keep experimenting and write down the exact text of any error messages.
I also had some problems with the HeirDA and rather than figure out what was going on, decided I could live without it.
Finally, you CAN run the new Thunderscan software with the old hardware (as soon as you get a powerport). I will send you a copy.