Light Disapearing in Final Render - Help

[foresight_sports]

I'm having an issue where the light that should be cast is appearing in the initial render, but as it fills out, the light that should be cast on the table top disappears. There are still shadows being cast by the wine glass and the base of the lamp however. Any thoughts as to why this might be happening?

Thanks!

[foresight_sports]

Reversing the tables faces seems to have solved the issue. Not sure why I hadn't thought of it before, was thinking it was a light issue.