6
Here is a quick review of the problem Goffy experienced for anyone following along. This will NOT work and triggers the warning:
<{if xoInboxCount}> ... <{/if}>
This will work:
<{xoInboxCount assign="unreadCount"}> <{if $unreadCount}> ... <{/if}>
The output of xoInboxCount goes straight to the page output. Using the assign parameter assigns the count to variable that can be used with the "if" function.