I think the only thing to do is to monitor her more closely. Keep her tethered to you at all times or put in a crate when you can not watch her. You are not alone, we have had problems with dogs peeing on the beds in the past, and we go back to the basics of housebreaking and do what I mentioned above. It will not fix itself overnight, you need to be very consistent and I would HIGHLY reccemend doing the NILIF training that was mentioned in your other thread. Hopefully things will get better, I'm sorry