A question for the Big Brains...

[Skeeter]

Okay, Vino-masters... I have a query for you.

I picked uo a bottle of port recently from a vineyard that shall remain nameless. (Mainly because I like them a lot, but their 2002 vintage was FAR below their usual standards... practically tasteless in some instances.) On tasting it at the vineyard, I like the port immensly, but...

The bottle I opened at home has a somewhat harsh aftertaste that I can best describe as "Woody". It vanishes by the third sip or so, but I'm wondering if this could be due to a tainted cork. Or did I just get the Evil Bottle?

It's not so bad I want to return the thing and demand a refund, just noticable enough to make that frst sip a bit... rough.

Any ideas what might have caused this?