I recently purchased the ZI6 too & bought a 32 gb sdhc. Like Donna, my camera shows a red icon w/ an exclamation point on the memory card icon on the screen. When I contacted Kodak they told me the card needs to be re-formatted...
I'm not sure what the current format is...I just bought it brand new. & Kodak wasn't able to tell me what or how to do that...I'm on a MAC. Can anyone help???