I assume you are running FS2004 or FS2002. This Oijordsbakken panel was designed for FS2002 so it is unlikely to work in FSX. Assuming you have FS2004, take a look at this thread.
viewtopic.php?f=4&t=2579&p=10657#p10657Also, make sure you are using latest version of FSUIPC. Under Miscellaneous/Additional make sure you check the box marked 'extend battery life' and enter 0 (zero) in the box on the right.
This panel is not easy to set up. Do you have all the original files? There are lots of updates and tweaks. If you want more help please send a private message. It is worth taking trouble to get it right.
John