Hello, this is my first post and I just got the CS 727, which is unbelievably awsome :)

So, I have no problems getting all the systems up and working just fine, and I was all ready for take-off clearance and I noticed that my GPS had turned off and ATC would not let me choose to ask for take-off clearance...

I am not sure if this is something I did in the 727 or FSX itself?

I cannot find any way to turn the GPS back on at all, but all my electrical systems and avionics work just fine.  It was on for a good 10 minutes before I noticed it had automatically shut off?

ATC was working and I saw ATC talking to other aircraft and it was showing up on the text log box, but when I was trying to ask for clearance it wouldnt work, and I no longer saw ATC communicating with other aircraft.  I checked my frequencies which were all fine, I'm just really confused    :'(

Not sure how to remedy these two problems?

Thank you in advance for your help!