itunes saying mac not authorized

[Aruba]

hi guys newbie here. I have 4 out of my 5 comps authorized to play my paid for tunes but nomatter how many times I have done this , there are about 100 of my songs that STILL keep popping up as computer not authorized.

can anyone help me before i go slowly insane!!

 

[jmann]

Just reinstall iTunes.

 

[alphaod]

Try to deauthorize the computer and reauthorize it.