I just got Sibelius 5 and I have a problem. I am trying to make a note on the guitar bend up a whole step. No problem, right? Yet I cannot figure out how to do this!

Here is one thing I tried:

The bend is a 3 beat bend. I made two notes, one a dotted quarter note, and the other a dotted quarter note. I entered the two notes in, pressed J (shortcut for bend) and it bended the note. BUT now, what happens is that after it bends to the note, it strikes the note again. Ill give an example

Lets say I am bending from A to B. It bends from A to B but then it hits B again, after its done bending. It makes it sound and look like ****. Can someone please help???