I like Andy, he does have great talent. The problem with Andy is that he has a lot of pressure in his shoulders, being the EVERLASTING promise for Great Britain to have a new top player in the sport. Remember how much pressure Henman had? I mean, Henman was a great player, I liked him a lot, great personality and good game, he was really charismatic. But Henman did have a lot of pressure, he was a "dissapointmen" for not winning any GS... He actually once was #4 and that is as far as he got.. Now, imagine having all the talent Andy has and still expecting WAY more than they did of Henman?? That is a lot of pressure, not to mention that he had the bad luck of having to play Nadal, Djokovic and Federer..
I think it kinda hard being in Andy's shoes, still he has the talent to win a GS...
Nevertheless, he should focus on his career and just play the game...
As for a prediction when? I don't see him winning RG or Wimbledon, it should be at USO or AO.. I personally think AO is better for his current form, but he has the game to go onto USO and win it.. He should have to be WAY more aggressive if he meets either Djokovic or Federer in the finals, I am talking about USO or AO.