In every thread, one answer can be selected as the solution, making the user who posted the answer rank up (kind of). Since you didn't know about this, I selected terry4536's answer as the solution because he answered your question (that's why the answer has green borders around it).
Usually the 'Pick as the solution' -button is only for the person asking the question, but since you clearly stated that your problem had been solved, I thought it would be nice to select a solution for the thread.
I hope this cleared thing up for you