HDMI to 1080p not working?

Hi i know there a few threads on this already but nothing seems relevant to my exact problem, i have just bought a 1080p sony lcd and hooked up my old style xbox that has a hdmi port to it but it wont display in 1080p for some reason (when im on the menu screen on xbox dashboard) is this normal and will it go to 1080p when i start game or is it not capable of 1080p at all?

Cheers

u still need a hdmi cord to actually play gams in hd, u can find plenty at your local electronic store

Cheers for reply mate, ive got a hdmi cable i used to have a 720p samsung but now it wont go to 1080p :( its defo not the tv as my ps3 is going to 1080p ok

Cheers again for reply, i fixed it, it was the cable it wouldnt go to 1080p so changed it and all good :D