Board Thread:Questions and Answers/@comment-24215177-20131125232239/@comment-14600979-20131126133902

I looks likes your problem is that you are assigning STR to +1 and PP to -1. What you want is STR=STR+1, a new line, copying the IF statement

PP=PP-1. Because for some reason, you can't use : to add on things for IF THENto do.

Does it make sense? You have to subtract one ''from the previous value. ''Also, if you don't already, you'll need  a loop around the BUTTON scripts, so it keeps polling for input, not just once.