The first thing you do Chris, is ... ignore Freddie. LOL That little 'Metronome' trick of his has only worked on his system. If you try it and prove me wrong, I'll eat crow and apologize.
Try this:
Load X2, hit 'P' to bring up Preferences, go to 'Configuration File' under 'Audio' and change 'DropoutMsec' to something higher than it is. Write down the original setting in case changing it makes things worse.
Save it and reboot Sonar and see if that helps.
Drop-outs and pops/clicks seem to have gotten worse with the A patch. If you do a search you'll see a few folks have run in to problems like you are describing since they installed the A patch.
Good luck!