This thing appears always after i install my iDeneb v1.6 and no Mac OS bootloader appears without the DVD inserted. My PC specs are:
Intel Core 2 Duo E6750 2.66Ghz
Motherboard GA 945GCM-S2L
Video Card Nvidia GeForce 8600 GT 512 MB
Network card Realtek RTL8111/8139 (not sure which of them)
2 GB of RAM
I selected the Chameleon bootloader to the latest version.