Ok gentlemen, I need help in figuring out what I'm doing wrong. I went to the apl/tda website, and decided I'd try the tda trial software.....so I was informed I needed to download some software, don't remember the name......version 2013 8.1mat play or sumthin.... and I followed the link and did that....then I downloaded the trial version of tda. The only evidence I see of tda on my computer is the installer program....I've installed a number of times yet still no tda on my computer that I can find.....ugh. Can someone please walk me through exactly what they've done to make this work on their computer? I hope so, I've read the directions on the tda site, and I'm obviously missing something. Please someone help this barely computer literate feller out!