Thanks JB,

I aready have the Nvida set up correctly, just like the Nhancer would tweak it.  I did see the simviation post a month or more ago by Nick Nedham. 99.99 percent of what he recommends on the link I have already done.

I do think I have duplicate or old  FSX.cfg entries for "trusted" Captain Sin C-130 gauges from when I installed it the first time then unistalled it from the sim completely. May need to clean them out.

I may just get rid of ithe C-130 altogether until I build up a more powerful computer ( processors) and switch from SP-1 to SP-2

It's think it's all those gauges and functions that are kill'n my sim FPS .

I just don't understand why such a dramatic swing in performance from mine to similar systems and in game settings, considering I done most of the correct tweaks also particulary those mentioned above.

Maybe it's my 25" WS monitor, which is set at 1900 x 1200 x 32

Thanks so much

Doug