curbsidepolymath

I am trying to dual boot OSX and Windows on this laptop model. However, upon installing Mavericks successfully on a partition, the BIOS does not see the partition and I cannot boot up OSX. If I switch to UEFI mode, Windows boots up fine, while the USB cannot be seen. If I switch to CSM/legacy mode, the USB boots up, Windows cannot be seen. If I don't have the USB plugged in, nothing is booted up. From what beta9092 said above, it would seem that I have to format the drive as MBR?? But that would render Windows 8 not bootable right? Anyone has any idea how to get Chameleon to get OSX to boot up? Quite lost here