Hi guys!
I've been running the "old" version of Pd-extended (38.something) on an Intel Macbook for about two months now and recently switched to the new version (39.3). But as you may have guessed from the title, there's a huge problem now I didn't have with the older version: I'm getting glitches in my audio output, ranging from clicks to longer "buzzy" sounds, whenever I set my Creative Xmod external soundcard as the output device, the Macbook's internal output works normal.
And no, it's not a CPU problem, since I was smart enough to download the Intel version of Pd-extended and I didn't have this problem with the old version which was ppc only if I recall correctly. Also, I'm getting those glitches even with the simplest [osc] to [dac~] patches.

This is starting to drive me insane. Any help would be kindly appreciated.

OK, I fixed it myself. All I had to do was turn off "defeat real-time scheduling" and start Pd with the -rt flag.

good to know. thanks for the update!