I have had my HTC Desire-S for some time. It is on a Vofafone SIM Free Contract as I purchased the phone outright about a year ago. My son has recently taken receipt of a Desire S on a different network. I am therefore now able to compare phones and can see straight away that the download speed and playback of Video on You Tube or BBC News etc is far better on my son's phone than on mine. Both phones are running the latest version of the Android operating system and I do not have hundreds of apps on the phone, so I cannot help wondering if there is a setting which is wrong. Can anyone provide me with a clue to what could be going wrong? Vodafone coverage in the area I live is pretty poor, so they provided me with something they call Sure Signal,which, when it works, gives excellent 3g reception. This leads me to doubt if it is a network problem.