Winamp "stops" after every song played
 

It will play 1 song, then stop at the end of it, instead of going on to the next song. I couldnt find any similar topics in here.

Try unchecking this option:
Prefs (Ctrl+P) > Playlist > 'Manual playlist advance'

(if you're using a classic skin, you can also right-click the Repeat button > 'Manual playlist advance')

Thank you very, very much. Been driving me crazy!