Hi all, I have lost the programing PC hard drive. My problem is that our turbine controls program is in RSLogix5 ver 4.10, I can only find the disc to load ver 3.22. We had a service agreement up to about 5 years ago and we are now intending to purchase the latest rev. I am in urgent need of downgrading the existing programs from 4.10 to 3.22. to get the descriptors etc.anybody out there can help us???