BAC 1-11, can't start the engines...

Hi all,
I have installed the BAC 1-11 from dmflightsim.com, a pure beauty.
However, I have troubles starting the engines in manual mode following the check-list.
(Engines DO start properly when using CTRL+E, though)
The Checklist basically says to set the battery ON, APU control OFF, APU manual, and then start APU. The APU then switch to START status, but never switch to RUN :-//
I followed the rest of the checklist nevertheless, and when it comes to starting the engines, the RPM never exceeds 20%, and the engin never starts
What did I do wrong ?
FSX SP2, Cold&Dark mod.
I have installed the BAC 1-11 from dmflightsim.com, a pure beauty.
However, I have troubles starting the engines in manual mode following the check-list.
(Engines DO start properly when using CTRL+E, though)
The Checklist basically says to set the battery ON, APU control OFF, APU manual, and then start APU. The APU then switch to START status, but never switch to RUN :-//
I followed the rest of the checklist nevertheless, and when it comes to starting the engines, the RPM never exceeds 20%, and the engin never starts

What did I do wrong ?
FSX SP2, Cold&Dark mod.