Cannot open XBMC

I have a jailbroken apt2 and can not open xbmc. Each time i select it from apples main menu it reboots and starts from scratch . I have removed xbmc from nito and reinstalled it and still same thing. I also removed it from nito and then ssh into it and tried to install from putty. Even after reinstall it still reboots when i try to open it .Does anyone have any ideas as to what is going on with this machine? thanks in advance