Attitude Indicator Topple

[FYY]

I`ve installed some great aircraft from a Cold War add-on which are designed for CFS1 (Javelin, B36, F101 etc).
The aircraft fly and look great in CFS2 and the only strange thing is that on all the jet aircraft the attitude indicator begins to "topple" and falls over even after engine start, however in the prop aircraft (Bear, Shackelton) the AAI topples but rights itself after engine start.
Any ideas??

[OTTO]

  I believe it is a vacuum prob.
If you have air.ed installed, open the  air file & look for section 1512.
      If it doesn't have it , find one that does & copy to clipboard & then add to clipboard [ the whole section]  to the airfile  that the attitude gauge doesn't work in.
      It worked for me so good luck.

                                                             OTTO