Crack/Pop Noise When I Hit Play (with Drum synths ONLY)

Hello Everyone,
 
1.  New project
2.  Insert a drum synth (like D16 Nithonat or AudioRealism Drum Machine)
3.  Hit Play ---> GET LOUD HARD EAR PIERCING CRACK/POP NOISE WHEN YOU HIT PLAY!
 
Funny thing is, if I put on any other softsynth thats not a drum softsynth, something with a slower attack... no Pop Noise!
 
Also if I move the drum track to play at measure 2... no pop noise!   its only if I hit play when a drum sound is right there.
 
Any help would be greatly appreciated!
 
-Adam