This is really a nice looking calculator. I had trouble installing to my Windows7. I did something wrong and was missing several DLLs needed to run it. I found them in a program called Gimp-2.0. I copyed all the dlls located at: C:/Program Files(x86)Gimp=2.0/bin and put them in C:/Program Files/TieMu and this solved the problem. See my Sourceforge page at: 'http://rb27.synthasite.com/freeware2.php
***VIRUS*** Seriously??? I never thought I'd find a virus at SourceForge. Here is the link: img24.imageshack.us/img24/8573/downloadtiemuati89ti92v.png
There are no 3 star reviews.