I have the same problem with WIN2000.
I recently installed a new Viper v770 and had some driver issues with WIN2000. I had to use a driver that was not from the manufacturer to get other games to work, but it doesn't seem to help in AH.
I start up the game after all of the installations are complete. Doesn't seem to matter what screen res I pick. I get to the opening screen and loose my mouse except at the edge of the screen. No keyboard basics seem to work to activate the options on screen (TAB, ARROW keys, etc.)
I've even tried changing the drivers for the mouse, switching to a USB mouse instead of PS2...nothing seems to help.
I don't know if this helps, but during all of this inactivity on the opening screen/menu the processor is pegged. I'm running a PII 300 with 96MB RAM.
Anyone have any ideas about how to get this to work...I'm having withdrawal symptoms not being able to fly...