[tonykitowicz]

Thanks, Its the entry model mid-2012 27" iMac. I wasn't even recording, just hit play and tried to use input monitoring.

Like I said, with Logic Pro X I can go on and on, much longer than an hour doing this. I am certainly not going to make hardware changes at this point since I can use Logic Pro just fine for my scenarios. I just wish I hadn't spent the $199 on Protools and wish I could get my money and PT11 license back.