Optical drive on SATA make Black screen after cold start and stuck, next quick turn ON/OFF start normal. PATA drives are not affects. I Try more SATA optical drive, and this problem is same. This problem is only, if I boot Mac os x (10.6.1).
CHipset intel X58, Gygabyte X58-UD5, Graphics 9800GT.
Thanks for very good work on Chameleon.