Problems with rollover button states for multi-state objects

Hi everyone,

I'm creating a product presentation that will be used as an interactive SWF file.

I'm having trouble with rollover button states. Here is a description of what I'm trying to achieve: I have created an interactive product display panel that when the user hovers/rolls over a button, the switch rotates to the desired test type position,  as such (I'm in CS5):

When I'm in the preview panel testing this out, the multi-state objects do not animate as I glide over the buttons.
However, it  works if I rollover on a button then rolloff, rollover again on another button and rolloff again, so on and so forth...

Is this because the buttons are too close to eachother?

Any workaround I should know about?

Any help would be appreciated!

Thanks.