Slowdive wrote on Apr 7^th, 2009 at 8:44pm:

rupesh wrote on Apr 7th, 2009 at 2:42am: actually, the cost index does not need to be limited to just 100, depending on airlines and schedules and delays etc..they will run different numbers..and so can I in the 757, so if that input other than 100 is crashing fsx, there is something wrong..i don't get that crash, nor any other kind of fms crash at all..just can't get manual control after A/P disconnection, sometimes for an entire minute, i clocked it. even the new fsuipc 4.5 did not help..that still remains. Sure in real life you can go higher, but if you don't want the CS 757 to crash, don't go higher than 100.

Like i said earlier, "so can I"...i do not get a CTD with the fmc with any inputs including the cost index, i have set it at all different numbers, even higher than 100..usually have it set to 130-150, so this must be dependant on the hardwares?