I was excited to get HP1 and HP2 in the mail today and ran to install them only to find out I cant play both! The games boot up perfectly and no problem at first but its after the first cutscenes in each game when you can start walking the problem is happening. Harry automaticly decides to walk backwards all the time and also the camera moves left constantly and I dont have any control on harry in both games! In HP3 there is no problem and I cant find a solution! Can someone please help? I have windows 8.1 if thats any difference

Please help

try launching the game in compability mode as windows xp sp3 or something, also try to make the game windowed and see if that works ;)