i have a hp g 62 with windows 7 on it, and i installed i deneb no problems, the issue comes at bootloading any of this... say i just installed os x and i start it and it goes beautifully, but if i want to switch to win 7 gives me the known bootmgr missing wich i fix and go into win 7, but now again, if i reboot to go to os x it goes into chameleon boot loader and gives me the option but it just freezes and stays in a black screen not doing anything......

Any ideas????