Hi,I purchased the 737-800/900ngx when it came out. I just purchased the package for the 600.700 FSX this evening. I can not for the life of my get the engines to start. I start with a cold and dark, turn the batteries on, fire up the APU and get APU egt rise, the blue light on the electrical bus comes on, BUT, i can not select it to get power.Any ideas? I have flown hundreds of hours on the 800 so don't think I am missing anything.....