Hi Bob , I had the following error message when I chose the aircraft:It is written: "Flight Simulator was unable to load some aircraft and software. You can continue using Flight Simulator but this aircraft or software will be disabled. File: AIRCRAFT\fsfsconv\panel.b732ADV\B732ADV.gau"I use FS2004, Windows XP SP3, and a registered version of FSUIPC (v. 3.90). I revert back the panel to version 1.25, this time it works fine. I thought the gauge file (B732ADV.gau) is corrupted so I downloaded it again from avsim library, install the panel per instruction, but the error message won't go away.Also, I made the registered FSUIPC into unregistered version (by removing the fsuipc.key file and fsuipc.ini), but the problem still occured.One more question. In version 1.30, since there is no instruction to add the line Old_Modules FSSound in FS9.cfg ; do we have to erase the line Old_Modules and remove the file FSSound.dll from Modules folder?I hope you can fix those bugs and sorry for my poor english...