Quoting John Horning john@rivul.com:
Apparently the culprit was not Visibility API after all. I wasinstalling more than one module when this happened. I removed them and put back one by one. The Table Export Module is the one I can't put back without breaking my site. I see a "phptemplate_table" function in the module. Is this not supposed to be there? I'm not too familiar with how modules are supposed to be created.
Open a support request with the Table Export module.
Earnie -- http://for-my-kids.com/ -- http://give-me-an-offer.com/