GBP/USD - 1.6340 .. Although cable rose to as high as 1.6382 on another round of cross buying in sterling, price has retreated in a relatively quiet start to the U.S. session with forex markets showing little reaction to the release of U.S. data (PCE, personal consumption n personal income). Offers are likely to emerge at 1.6390/00 n further out at 1.6450/60 while on the downside, fresh buying interest is seen at 1.6300/10...