when i select certain files for downloading my computer immediately goe's to a black screen then i get the blue screen citing errors i then have to reboot my computer.

i can have 3-4 downloads going smoothly then when i select the next file as soon as i click on it the black screen appears after a few seconds the blue screen appears displaying the msg to hit any key to continue but hitting the keys doe's nothing i then have to shut down disconnect my computer from the internet and reboot, open limewire and delete all the files that were downloading after that i have to shut down re-connect to my modem boot the computer up and only then am i able to get back onto limewire.......any suggestions as to what's going on ?