acceleration missions & keys not working.

[socko]

Just installed acceleration expansion pack. Missions run for 5 min. then screen freezes up. Also some keys don't seem to work. Like the launch bar **** + u nor takeoff assist **** +i and more. Aircraft seem to fly o.k. in free flight. But those keys don't work in that mode either. Anybody with any ideas ?

[socko]

I forgot to mention I'm running windows 7 64 bit and have 9800s GPU's