How steady are your hands?
Try this, Its a maze to test your steady hand skills! they say u make a good marksmen if u can get to level 5 gl
http://www.winterrowd.com/maze/
longest i ever left my cpu on was for 3 days my m8 has left his cpu on for weeks since i have reformated this is my stats
1d 6h 5m 15s set on Fri Mar 17 23:25:19 2006