i recently purchased the bf2 complete collection pack and was playing on version 1.0 even though it came with 1.41 patch but today
i installed patch 1.41 and also downloaded 1.5 and installed it and was playing for few hours.
Then i went on internet and found a cheat/wallhack etc and ran it.
For few seconds the aimbot window showed up in game then game got crashed and since then that cheat does'nt open.
I started playing regular way(without cheat) for an hour and then closed the game but when i try to connect to any server the error
pops up "The connection to server has lost."
And when i again try to connect the error "CD-Key is invalid" pops.
I HAVE A GENUINE KEY AND I HAVE'NT GAVE THIS TO ANYONE.
WHAT IS THE PROBLEM???????????