Check http://www.puzzles.com/PuzzleHelp/Puzzl ... 36.htm#032 for the solution.
So you think you got what it takes to crack an extremely mind-numbing puzzle? Let's see what you can do...
Here it is:

Okay.. Now here's how it works:
The goal of this puzzle is to draw a LINE through all of the lines in the box WITHOUT going through one line more than once (all of the lines between the red DOTS). You can't draw a line through any of the vertices and every line must be penetrated by the line you draw at least once.
Here's an example:

Note: This is NOT a solution. Notice how one of the center lines has not been crossed over by the line I drew? The object is to draw a single line and have this NOT happen.
Once again you have to draw a single line through all of the lines between the dots WITHOUT going through one of the lines more than once.
Enjoy =)