Have a look at your HDD, get it out of your case, and check the Jumpers.
If it's set to slave, switch them to master and then try again.

http://www.pchell.com/images/masterslave.jpg

You find a description for the correct slots on the top of the HDD.

Oh great, thanks Puttabong. So I'll plug them both in one port and set the hd to master, the rom to slave. And then I'll try again.
See you in a few minutes ...

A friend always set the 40GB-limit-jumper insted of the slave jumper as he wanted to set it to master ;)

I set the jumper as the intructions on the hd. My problem: My HD is now on Master, but on the Rom there was a jumper, too, without any instructions. I removed the jumper and now my Rom can't be detect (windos doesn't start to ... when windows is loading the crcdisk-driver, it freezes).
So where should be the jumper on the Rom plugged in?

The most dvd-roms are jumpered Left-Cable Select, Middle-Slave, Right-Master. From the back view, of course.

Alright thanks, so the jumper have to be plugged in the middle pin-section. BTW: What is "Cable select?"

A poor shit option, the best way for problems in sytems with multiHD-DVD :D

Alright thanks ;)
I'm back at MY pc. So should I try now with the tiger-kext-modified version, the viaata-kext version or the original version? ;-)

1- Original , 2. Viaata, 3.tiger , god luck. :D