I installed wxmaxima-mac-standalone via fink on macbook pro os x 10.8.5. When I try to define a function, as in f(x):=x + cos(x); the output line shows as := < > := < >, that is, no symbols. However, if I copy and paste the output, the symbols appear. Same thing happens with evaluation of the function, or differentiation. What is this newbie missing?