Frustration & Ethics

I am currently dealing with an issue at work that has challenged me more than I thought I could be challenged lately. 
Long story short I am working on a project that has a high potential risk in a certain area.  I'm trying to manage that risk so that my company doesn't lose $.  We're talking a potential for a lot of money.  It has been EXTREMELY difficult.  
Here are the factors:
1. I WILL be ethical, I cannot do something to cross that line
2. There were mistakes made by all parties involved
3.  All parties understand the risks yet we cannot agree on a solution

Have you ever been faced with a difficult issue, at work, school or in your family where it has taken weeks to come to a resolution but you can't think about anything else?

Ethics, God, Work StuffErik Timmons