flop turn and river

[sqwisssssss]

is the flop turn and river predetermined when a given hand is dealt out at fulltilt, stars or where ever?

in other words, i get dealt a hand in the bb. a few people limp in, i check. the flop comes 7 6 5. if i waited a micro second longer to click "check" pre flop, would the flop be different? or is the flop already predetermined?

i have no idea how the software works. if anyone knows......please tell. no speculations please.