ES44AC,
I was finally able to get me engine running properly after sending the whole engine back to MTH. They did not want the circuit boards, but the whole engine (warranty work). They installed a new board and since then I replaced the sound file with the one I wanted. I was told that there was bad memory blocks and when data is written to this bad blocks, the sound board gets messed up. In my case, I tried to install new sound file many times and failed, tried with different laptop, different USB cables (I work in IT and have access to many PC's, cables etc.) and got the same result, it would bomb at about 35%-40% complete. Though my engine ran fine and smoked. The sound was garbled. Now with new board, it's perfect. I wish there was some kind of software tool to reformat all the memory blocks. When your re-loading a sound file, your simply over-writing the existing file and filling in the memory blocks. This would help when installing a new sound file. I wish I could provide more help, other than send in your engine or buy a new board. I hate for you to spend money on a new board.
Here she is running at my clubs layout. I did not like the sound file that came with the engine. I like the sound file that came with a newer #4014 with crew restoration dialog.
https://www.youtube.com/watch?v=CHN7bQlakFQ
Regards,