Menu problem with my new Toshiba 36" widescreen tv 36ZP18 After pressing the MENU button on the tv remote it brings up the Menus Picture, Sound, etc. as it should. But when I come to move through these menus with the < , > , ^ and down arrow buttons on the remote as the instruction book tells me to, the < and > buttons just alters the sound level on the tv, and the ^ and down buttons just change the tv channels which are currently showing !! Has anyone else encountered this problem with this tv / remote or am I doing something wrong ?? Just wondering if anyone out there can help before I go back to the supplier ?!?!? Any assistance would be greatly appreciated !