Cycling viewtypes with number keys? (macbook)

Hey guys,
Perhaps some of you could help me,
Somehow ive managed to mess up my default presets, so that when i press number keys, instead of cycling through the various views, it cycles through the various layers, which is extreemely annoying.
Im fairly certain that this is a very easy thing to fix, but frustratingly i haven’t been able to find out how.
The trouble is, im on a Macbook Pro, so i dont have a Num-Pad.
Any help would be greatly appreciated.
Thanks as always.

in the options at the top (pull down the menu)
in System & Open GL
there is “Emulate Numpad”
make sure this is selected