A new feature in VS 2008 is that you can make the Intellisense listbox transparent by holding down the ctrl key. This resolves what was a major irritant for me.
However, with VAX (build 1619) loaded, I have to disable "Include suggestions in listboxes" VAX for this to work.
I'd like VAX to support/not break this feature.
(edit: I thought disabling the one option allowed the transparency feature to work - it appears I have to disable VAX altogether).