does your nose rise when you take off on fsx?

hi guys,

this is a really weird one. I have just installed fsx and on take off in a B747-400 the nose raises right up when i hit F4 to open the throttles, so much so that i could see the runway and how far from the end of it i was. is this meant to happen?

I tried it in the CRJ and it did the same but not so much so i couldmt see the runway

thanks

AndyMil