[jQuery] addSlide with Next/Previous pagination using Cycle Plugin

Hi
Firstly, the Cycle plugin is great!
The slides in my cycle contain pretty large images, so I'm pre-loading
them and adding using the addSlide option. However, this breaks my
Previous and Next buttons. They work for the first two slides that are
present when the Cycle begins, but on the third slide they do nothing.
Is there a way around this?
Thanks in advance
Martin