Looking at the debug spew without knowing what exactly it means is not a good idea. If you're not careful, you'll become convinced that your computer is the memory-leaking, bitmap-dropping, table-missing spawn of satan.
Or in other words, the error you're referring to is almost certainly harmless. interface.tbl is used exclusively by the lab (F3 at the mains creem) and storybook. If you're experiencing problems with any other part of the interface, it's probably something different. Thanks for giving the debug build a shot first, though.
Can you describe or (preferably) post screenshots of the problem you're experiecing?