Needing a little advice..

hey people,

Just to get one thing straight, im a total 100% beginner amateur at flying, just about learning the basics so the question im about to ask might sound a little stupid. One thing i really can't get my head round and is really irritating me is that im flying a Bombardier Learjet at FL330, ive followed the checklists, got autopilot set etc etc and all of a sudden it seems as though the aircraft gets hit and causes it to gain airspeed and altitude, aswell as causing it to go off course. What is this, and how do i prevent it from happening?

thnx guys, and help would be appreciated

It sounds like you have hit Z or a button near there that deactivates autopilot (can't remember the exact button). If you deactivate AP then your aircraft will do what it wants until you re-engage it.

Confrirmed about ''Z''