Flight Simulator X Deluxe

Hey all,
Need some help with my MS Flight Sim deluxe, I purchased this about 3 weeks
ago and installed it on my laptop, this is a HP dual core 2GHz with 2gb RAM,
initially everything worked fine until I installed the service packs, I put
both service packs 1 and 2 on and following that the Flight Sim would not
start, it displayed an error message telling me my video card was not
supported and I required Direct X 10. I managed to uninstalled Service Pack
2 and got the sim working again.
Now the mess - I have just installed the Acceleration pack which
automatically installed service pack 2 and again it is bringing up the same
error message. I have already activated the Acceleration pack so I loath to
uninstall it unless I know I can reuse reactivate it.
From what I have seen Direct X 10 is for Vista, could be wrong. Furthermore
the requirements on the back of the Acceration Pack is met by my system spec.
Right now I any suggestions you guys can come up with!
Cheers