Solution: Winamp opening offscreen
As I had this problem for some time with no solution, I thought I’d make this post to get more search results out there… Hope this helps:
Option 1: Use a different skin
Simple enough, if you don’t mind it… Which is what I did for a few releases of Winamp…
Option 2: Scale the skin
Right-click the taskbar button, go to Winamp -> Window Settings -> Scaling and choose Custom. On my system, as soon as I changed the scale, it popped the window onscreen. The tip I read said to scale it small, then you should have the top part of the window to drag… Either way, hopefully that’ll work for you. 