pc-xbox, Pc restarting??

I´ve got a problem,whenever I try to transfer with my pc files to my xbox it restarts my computer! It´s starts transfering for a few seconds and then it restarts my comp! What´s wrong??

 

what system are u running xp,Me,98 and what program are u using??

 

I´ve got xp professional and i´ve tried with qwix,craxtion4 and flashfxp,but with everyone the same problem.

 

i have never heard of this problem before you should try the pc forums......