>>I use the mouse wheel all the time. When I changed the time in the Time warp and then immediately scrolled the mouse to browse the list of messages, it scrolls the Time warp combo and not the messages frame. If I click on the messages frame, all works as expected.
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>This issue has been discussed several times. It's the behavior of the mouse wheel and I just don't know how to avoid that reaction.

I'm no interface expert, but I wonder if you could make the "Time Warp" label the Actual "GO" button that Cindy describes?
If that's possible then switching the positions of the label/dropdown might make it more intuitive.

Just a thought.