Content Display issue - incorrect content for anonymous users

I have a site that has 2 states for users, anonymous and subscriber.

At this time both states should be the same as we are in an intro period. Even after that, anonymous users will be able to see at least a headline and teaser for the newest content.

Unfortunately, at this point, the system has decided to display content from months ago and not the new content for the anonymous users.

So anonymous users are seeing content from last August at this time. Logged in users see the current content. This has happened to me twice. The previous time the content was from June. I was able to get the info back by restoring the database.

To see what I am talking about go to http://catskillmountainnews.com/
anonymous users should see the headline "Auxiliary earns over $107,000 for MMH, Mountainside; Adams succeeds Austin as president".

Signed in users (user: 1234567890, pw: drupalhelp - these are temporary until the problem is taken care of) should see a welcome message and the dates February 11 -17.

Initially we thought it might be a premium module issue. But with the module on, off, or uninstalled, this happened again and no information is marked as premium at this time.

I thought it might be permissions, but I have assigned the exact same access control to anonymous users as to subscribers at this time.

Is there somewhere in the log that I might find the issue that is causing this? At this time I am down to thinking it is the advertisement module that is the problem as this issue has occurred after we updated an ad, but literally somewhere between 2 hours and 12 hours after putting up the ad. I have turned off the ad module and still have the issue.

Any thoughts, ideas, guidance?

thanks

Cherie