Mine did the exact same thing yesterday.
I just kept fooling with it as everyone is suggesting...trying to use the mouse to pull the TB back to its normal size.
Don’t even ask me what finally worked...suddenly I had the taskbar at normal size, but it was far darker than the usual light blue.
I thought the hell with it, I can live with dark blue, but at somepoint when I was surfing or checking something it switched to light blue again, and since then everything is fine.
Before it cleared up I had been about to try a system restore...you could always give that a whirl.
Well, I did get mine back to normal size - with one item, Firefox, as the only quick launch item. The setting for taskbar is dark blue. I had deleted everything else from Quick launch, and now I can’t find the programs for Outlook Express or Windows Explorer.
Anybody know what the names/locations are for Outlook Express and Windows Explorer?