ResMed AirFit N30i

Hello all, I am new to this site and relatively new to CPAP (2 weeks). I tried the AirFit N30i but the air was leaking a lot and my 'events' score went up from 1 - 3 to 20 in the few hours I had it on. In the end I got up and changed back to the nasal pillows mask, but I can see that if I can get this to work it will be more comfortable. Has this happened to anyone else? Any ideas re what I could try next? Many thanks, Poll