Bristol_Jonesey
If it's only a few notes I would go into the PRV and nudge them closer to where you want.
Noob Translation: PRV is piano roll view. You can open that up by double-clicking on the track. You may need to scroll around in PRV to find the offending notes, but then just drag them or stretch them or whatever to get them lined up like you want. If Snap is turned on, it will jump right to the nearest unit (quarter note, half note, measure or whatever you have it set for). (I personally leave snap off most of the time. I like things a little sloppy.)