I have a MP3 WMA FM MODULATOR for car. it worked fine for a week. butwhen i added a few more songs through USB connection on my computer, itstopped working. when I plug it in cigarette lighter of my car it stillshous on the screen as if it is connected to the computer and does notshow the fm freequency. i might have deleted some drivers or somethingby mistake. please help

Car Audio & Video - Virtual Reality - Sound Labs VRFM7 MP3 FM Modulator