Ray don't get hung up on the FX rates this evening. Many of the FX brokers decided to cease trading for 48 hours from this morning and the currency markets are currently in limbo.
I had a chat with our broker earlier this week (Cornhill we use mostly) as he was asking us if we had any trades that needed placing this week they needed to be done before close of play on Wednesday.
Sterling had dropped artificially low in the run up to this event and what's happening now is a small correction and a bit of profit taking.
In short, the currency markets are not normal tonight, this is out and out gambling.