Song: What's Really Goin' Wrong
Band: Sublime
Tuning: Standard, low to high - EADGBe

The intro is just randomly picking notes from 

   A     C     D     A  
|--5-----8-----10----5--|
|--5-----8-----10----5--|
|--6-----9-----11----6--|
|--7-----10----12----7--|
|--7-----10----12----7--|
|--5-----8-----10----5--|

Then there's the chorus, but in the first picking pattern:


   A     G     F#   E7  
|--5-----3-----2----7--|
|--5-----3-----2----9--|
|--6-----4-----3----7--|
|--7-----5-----4----9--|
|--7-----5-----4----7--|
|--5-----3-----2----X--|


Then it changes to fast ska, and it's the same chord progressions.
After ska it turns to punk, and it's the same chord patters, 
but you can play full chords or power chords, up to you.

Apologies, I don't have the solo, I just improvise in either A major pentatonic
or A minor. Up to you. I think the E7's in the chorus stay the same.

Cheers.

Moshalot