Ever since I got my windows XP reinstalled with SP2 (by a technician, due to a sudden disappearance of the CD rom Drive), I can no longer install any PC games. When I insert a PC game CD rom, and install wizard will come up as usual and takes me through all the proceedings, and then it will tell me the game is now installed, but when I click on the icon or the start game button, I always get a windows error message saying "engine.exe has enountered a problem and needs to be closed". It happens to every game, new or old. Although I can successfully install any non-gaming programmes like TextPad or Word for example but not PC games. Does it have something to do with my graphics card? or ZoneAlarm firewall? or other drives in my computer? I am a person with very little knowledge about computers ><, please help, thank you in advance.