Art, welcome to the Dow's 63 club. Many years ago I bought 6 bottles each of 63 Dow's and Waare's. Perhaps 15 years ago, I opened the first bottle of the Dow's 63. It was brown, had a lot of sediment, and stank of oxidation and perhaps something worse. I just poured the glass of wine and the contents of the bottle down the sink. I then braved another bottle a few months later. It was a very good drink and not at all off. I still have two bottles left, and there have been no bad bottles since that first one. I have always wondered what made the one bottle so awful. The fill and cork were good, and it was not corked(the problem was much worse than corked). I wondered if someone had used the bottle to prop open a furnace door or if a worker at Dow's had substituted their lunch wine for the port which they drank.
In his 2005 pocket wine book, Hugh Johnson lists Dow's 63 in red, meaning that it is one of the best for drinking in 2005. Also, Michael Broadbent, in his Vintage Wine, last tasted it in 2001, rated it 4 out of 5 star, and suggested drinking it from now - 2010. Hopefully your next bottle will be better and you just had a single off bottle as I did.
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