hey im new and ive got a problem, ive got about 5 different USB ports on my computer now when i first started using DISK2PHONE i used the same one all the time but now when i plug my USB cable into it its dosnt come up anything, so i went and started using another USB port and now thats doing the same thing. im on my 5th port because with every other port i put my USB in it dosnt come up in MY COMPUTER that theres anything connected so i cant add songs to my phone anymore

ive also got another USB cable but that dosnt make a difference. can anyone tell me why or what is wrong?