My FC-35 flash for my 35GT just went on the fritz tonight. I can't make it fire. It charges up and the "ready" light comes on, but it won't flash, either when I press the test button or when I take a picture. If I turn it off and back on (even after waiting 3-5 minutes), the ready light comes on without waiting, so I'm assuming it's charged up, but just won't fire. Any suggestions? I bought this flash off ebay about 3 months ago, and it's worked fine since then (except that the batteries run down fast) until now. Any help would be appreciated. Thanks.