Have been disliking the junkfilter ever since it first appeared.

Go to Tools>Options>Filters>Junk and check the display Junk in place. Then move the slider all the way to relaxed and then press the Forget training data, Press apply and then OK

Incase you have trouble finding legit downloads look at this thread: (there is also a section in there about which words to add to the Keyword filter) and the whole Guide is worth reading.

How To Find Music Click Me

Many of these things apply to video as well