hi, i am facing some issue regarding GTA 4.i bought original dvd of gta 4 .also i got myself a new laptop hp g6 2312ax for gaming purpose.it came with windows 8.now the problem is after i installed the game on laptop.and double click icon for gameplay,nothing happens.absolutely nothing,no errors,no warnings,nothing.i googled about this issue and found some solution,but since i am new to gaming and know less about computers i am a little afraid in implementing changes like patch,and gfwl etc.i am afraid that after doing some of these software changes(which i think as irreversable) other games might not run on my laptop.if possible please help me with a full proof solution.