Greeting to the all knowing and supportive SOH hangar crew.
I am having problems with the wonderful freeware Classic Warbirds Design Team F6F Hellcat for FS2004.
The Hellcat performs magnificently in straight-and-Level flight under 247 mph.
A. In a moderate dive at reaching 247 mph the aircraft become unstable with the engine shutting down and will not restart before crashing in to the ground.

B. The engines shuts down if set to idle. (I can live with that.)

Also I receive two flying tips every five or so minuets in spite of following the tips.

1. Your fuel is critically low in selected tanks. Auto refuel is available CTRL+ X. (Does have on any effect on any selection.)

2. Your heading indicator is set incorrectly to set press D.

I have read the included manual several times however I was unable to locate anything helpful. Searching the internet had nothing.
I download a second copy however it did not solved the problem.

I am running on Windows 7 H P desktop with Intel I7 16 GB of ram. MSFS 2004 is the only program installed on computer. Of the fifty-five aircraft installed it is the only one not working correctly.
Any assistance given will be greatly appreciated.
Thank You: Dave