Hello all sorry to trouble you but i was wondering if anyone can help me and explain exactly how how to open up a command prompt to run cgminer -n , im having a slight problem getting my 2 5850's to run at more than 240khs but ive been a bit confused about the instructions i was given on another board

"Start -> run. "CMD" with out the quotes. CD To.you.miner.directory. cgminer -n. Copy, paste."

i like to think im not a total moron but this has thrown me, there is obviously a syntax protocol im not aware of and hence cant get it to work , any ideas would be terribly appreciated.   and if you could go throught it step by step as if you were spoon feeding a baby i would be grateful thanks in advance. btw my cgminer directory does reside in a folder on the desktop