SgtWookie what program did you use to create that schematic?

 

Welcome to AAC.

We find it less confusing if you start a new thread rather than posting onto the end on another, especially is it is an old one, like http://forum.allaboutcircuits.com/showthread.php?t=10973&page=2.

 

SgtWookie what program did you use to create that schematic?

Here:
http://www.schematica.com/555_Timer_design/555_Timer_PRO.htm
It can be run forever in Lite (Freeware) or Pro Demo mode for no charge.

I completely missed the fact they were having problems with their circuit; my best guess is that they used an old electrolytic cap that had an excessive leakage rate.