LG VX-8500 Chocolate

i purchased my 8500 a few days ago and started to set it up as to how i like it. on my LG 8100 and 7000 the "up" shortcut key on the directional pad was defaulted to mobile web which is how I want it on my new phone. My 8500 defaulted to this as well however it doesn't work. I've tried moving it to a different shortcut key, reset the default settings, etc and it still will not work. Is anybody else having this problem or I am just the lucky one that needs to go back to the store and have the phone replaced? Also, the "up" arrow on my key works for everything else on the phone (contacts, songs, etc) so I know thats not the problem.

Thanks in advance.