Hi,I am running FS2004. I had installed and registered the 737, but had to uninstall FS due to another plane causing problems. I have been trying now to re-install the 737 for almost 8 hours with no luck.Here are the steps I am using:1. Clean install from the original .exe and wo* files2. Reboot when prompeted3. Install SU (full)4. Reboot when prompeted5. Run FS2004I get the following error on FS startup: Cannot load PMDGOptions.dll. Plane or program will be disabled.I get the following error when trying to load the 737....MAG VAR UNIT cannot find MS Flight Sim Registry TreeI have also tried:1. Clean install from original .exe and wo* files2. reboot when prompted3. Start FS to register 737I get the following erro Cannot Run FS2002 Mag Var your mag var will be 0,0Mark

First, go to the Precisionmanuals web page and download and run the remove tool to clean out your install.Then run both the base install and the SU1-1 FullMake certain that when you install both the base install and the Service update that you are UNchecking the 2002 check boxes and CHECKING the 2004 check boxes.It is no longer necessary to generate a reg code.VinPMDGwww.precisionmanuals.comhttp://www.vinscimone.com/dancnkid.gif

Hi Vin,I did all of that. I printed off the instructions and used them as a checklist. It still does not work. I AM installing ONLY the FS2004 files and NONE of the FS2002 files.I also ran the Remove tool as stated in the instructions.Since I had to completely remove my FS folder, that removed the licsense info too. ( I assume) Could there be another registry entry or something?I have followed all instructions to the letter and nothing works, nor any of the numerous variations I could think of either.Mark