Help please - so here's the story around Christmas when we had the icy weather I fell down some steps (I wasn't drunk honest) and cracked the screen of my 3GS when this happened the silent/normal switch went a bit faulty not switching properly and the sleep button would only work if you held the top right of the screen in but everything else worked fine but in the last couple of weeks the wifi will only pick up the network when I'm in the same room as the router I used to be able to pick it up about 3 houses down the road but more annoying is the signal the phone gets is crap I keep getting no signal or searching all the time I'll pickup my network then without moving I will lose it again it can be like this for hours without a signal as if the ariel is not working properly for both the phone and wifi any help will be much appreciated*