Yeah . . . may be something going on with Melodyne (I have Editor version), I installed Sonar Platinum, smoooothly . . . when I opened an existing X3e project, right away there is a problem which automatically generates the cakewalk problem reporter, mentioning "melodyne" as being the issue, but when I try to submit the problem to cakewalk, the problem reporter locks up and hangs . . . sorry, couldn't wait more than 5 minutes, had to cancel it and restart Sonar.
 
So I try to open the same project again, and it works . . . opened other X3e projects with melodyne and they work . . . I'm hoping it just fixed itself ?
 
Tested, creating some new melodyne region fx, and melodyne editor seems to work fine on my system now, no crackles or pops . . . so, I can report that it is now working well for me.

have you tried adjusting your buffers ? this might help Melodyne.
after you make those changes, exit the program, re start sonar platinum again and see if that helps.
you might not need to restart but its not a bad idea to so sometimes after making a larger tweak.

Downloading Platinum now... assume that as I have editor with X3 I SHOULD NOT download essentials....
 
Correct?????????

I skipped the Melodyne Essentials install.

thnx

@Chuckebaby This isn't an audio buffer size issue.  On X3 I can use Melodyne with minimum buffers, (despite the warning Melodyne gives)  but this issue is a repeatable distortion in the audio regardless of buffer size, even when set to maximum.

I haven't tried Melodyne yet but all of my Antares Avox 4 plugins start crackling and spitting as soon as they're inserted on a vocal track. Same plugin and project in X3 is all fine.

I have the problem too. I will make a little video to demonstrate and post it here. Give me a few minutes.

You guys are making a pretty good argument to wait...I use Melodyne editor fairly often.
 

Ok, I made a little video. At the end, the audio and video get out of synce. Probably something I did in my haste and tired state of mind. But this is what I am getting...
 
http://youtu.be/lp1jl41M964