I strongly suggest every 744X owner who uses FSUIPC 4.xx to check if the "Extend battery life" option of FSUIPC (Miscellaneous Tab) is enabled. If it's not checkmarked, do so. For me the value is set to indefinitely (0) Don't know if other values will work also.Some minor problems like- IRS DC EICAS messages- Main Gear doors didn't close- Lights not functioning- ....are solved with this option enabled.Regards,Joerg Alvermann

Thanks!This seemed to work great as a temporary solution!