CDROM drive not found when booting using new libata code

Hi,

I found that I have a similar problem. I'm running kubuntu box with 2.6.20-10 kernel with ubuntu patches and my cdrom as well as dvd drive doesn't recognized at all. I've already reported this on kubuntu forum, but nobody can answer me. The link is here: http://kubuntuforums.net/forums/index.php?topic=3080227.0
I also tried to compile generic kernels from kernel.org with the same result. Can anybody say what is gonig on with my hardware? Before 2.6.20 everything ran smoothly.

Regards,

Yarema