Hi Dino, I'm sorry if my comments sounded harsh. The T-45 is a real work of art; I know others have said it, but I'll say it too - its one of the nicest freeware releases ever for FSX. And I do understand the compatibility issues with the glass material, and I agree its a fair trade to have the less realistic textures so it works on everyone's setup. I guess I just really got attached to the awesome reflections of the previous material. It would be great if you'd make the mdl available, but dont worry about it if its an annoyance - the jet is fine as is!
As for the sound issue, I agree it doesnt make sense that its related to the GPWS sounds, but I have moved the old and new sound folders in and out and done a lot of test flying, and I only get the glitch with the new sound folder. Maybe its something my setup doesnt like about it. I also get similar issues with the A2A P40.