Are there are any computer Guru's out there? I have just had my computer upgraded to Windows XP (from Windows 98) and to the distress of my son (and potentially my bank balance) have found that most of his games (eg Thomas, Tweenies, Learning Ladder) do not work on this new platform. Has anyone else had this problem and if so how did you resolve it? Does it mean having to buy new software or is there a way around it. Any advice very gratefully received!