I'm suddenly getting a yellow warning icon for one of my downloadable products. It is set up exactly like all my other products and the error doesn't give me a hint as to what is wrong except that price is highlighted. The price is 0, because the actual priced depends on which of the options are chosen. No other product is giving me this error. As a result I cannot edit the entry at all because it says I have to fix the problem first. without a clue as to what the problem is....Help.