We all talk about the little things that screw us for days. Here is mine.

The same program with 4 executables pointing to bat files that all run differently. The executables to launch this program are in different places. 3 of the 4 are broken but give all appearances that they are functional. The one that works is buried in another directory that has 3 executables of the same type. Take your pick.

Short story, a 5 day problem solved by double-clicking the right icon.