The more link is not showing so that users are not prompted to click for more content.

This seems to be a bug but we are seeing an issue where post using the more tag to not show any indication that there is additional content for them to view. Normally, visitors would see thie more link, click on it and be prompted to register. This sight only has 2 levels and registration is free but they are never hitting the protected cntent so nothing is driving them to sign up.
Would someone please have a look at our configuration to verify the settings. I think it may be a wordpress issue but I do not know where to start.
Thanks in advance.
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