Hello MTK,

There is a known issue with all Macs in regards to a very minute waveform glitch that occurs every 3,4,or 5 seconds.
I've attached a clip showing this glitch on my Macbook.
Is the glitch you see similar?

If so, there is nothing that can currently be done.
You will definitely want to make sure the 'maximum screen updates' are set to 60 but unfortunately that won't fix it completely.

yea that is the glitch, I was hoping that the Mac Performance 1.0 update with the hard drive timing out which came out Oct 14 - 15 of this year could help, based off of your advanced support knowledge on this subject have you seen any cases where that has fixed the problem?

As for my personal oppinion with a IT background... just FYI not tryin to step on toes or what not, I think/ guess the problem is coming from the macbooks display refresh rate being faster or slower than the 60 frames per seconds of serato, so the OS and software are fighting with each other every 3 to 5 seconds. Of course Mac has decide to not make the screen refresh rate an option in the advanced system preferences. PC - 1, Mac - 0

Just let me know
Thanks MTK

The Performance update is new and I have not yet heard of any cases where updating to it has fixed this issue.

Although I personally don't know why this glitch occurs I've talked with Serato about this and they said that they can fix it on their end but apparently its not an easy task:(
Andy or James from Serato would have more details about it.

I'm sure it will be sorted eventually but I doubt anytime soon:(

Thanks Zach I really appreciate it!