RemoveGadgetItem ?

;My Tabber has only one item.
RemoveGadgetItem MyTabber,0

I've a "out of range" error, why ?
it's a bug perhaps?

I got this too.

And I also have this =|

window=CreateWindow("test",0,0,320,320,0,15)
tabber=CreateTabber(0,0,64,64,window)
AddGadgetItem tabber,"=|",True
;*****TAKE YOUR CHOICE, NEITHER WILL WORK! =\ *******

RemoveGadgetItem tabber,0;<===this should be the right one buuuuut......... nope
;Or
RemoveGadgetItem tabber,1;<===this dont work either