Far Cry no longer loads

My Antec SL400 crashed on me and took out my CPU:cry:  I replaced it them with a new Crucial530 and I upgraded my CPU to a Athlon64 x2 46008) and everything is up and running except my Far Cry.  It use to work perfect, but no more.  When I go to load it my authorization code has a screen stating that the code has been damaged and needs ''Repair'', select said button, but there is no repair button.  I have tried Tech Support from Boontygames, where I bought this on-line, but they have no intention on helping.  Any ideas?  Do I need to go out and buy a Disc?  Not a good on-line purchase experience for me:xFar Cry no longer loads
try reinstalling far cryFar Cry no longer loads
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