I have a Sony Vaio VGN SX1P Laptop which has been running under Windows XP. I have just done a clean install of Windows 7 and all is fine except that the desktop does not fill the whole screen. There is about an inch of black at each side. I tried the Sony website but they just said they don't provide support for Windows 7 on my model which is about 4 years old. I have tried various screen resolutions without success. There used to be a Fit to screen/stretch option on XP but I cannot find this on Win 7.Any ideas please?