Hi again, you have all been so helpful i have another problem that you might be able to help me out with. I am uploading ABPV 1000 Files for 5 different PV to PanelBuilder32 ver 3.8. All the PV are exactly the same, ver etc. All of the files open in PanelBuilder32 except for 1. It comes up with a message "unable to load file. not a pb32 file or file is corupted or disk space is low. I know it is a pb file and we have plenty of disk space. I can load the program onto a memory card and transfer it to another pv with no problems. If the file is corrupted is there any way to retrieve it. If anyone has seen this or can help i really do appreciate it. thanks again, you all have been great.