Liteon 5045 576P Component problem

I just bought a Hitachi 37PD5200 High Definition Plasma telly. Its got more connections on the back than you can shake a stick at.
My Plan was to connect it to my Liteon 5045 via the component leads. they are both able to support 576P (progressive scan) but when I do it, the picture is garbage. there are feint vertical lines all over. Any Ideas ??
I recon its the Liteon not the Hitachi. do the firmware upgrades sort stuff like this ?