Hello any body, I've been a PC user for years. Running Sonar on one machine using XP and Giga Studio on another using XP. All discontinued software but they run flawless every day. I bought the NEW Mac Pro 6 a year ago for Final cut Pro. But ended up with a DIGI 02 a few weeks ago a friend threw away (he thought it was broke) so I bought LOGIC PRO and have started my journey becoming a MAC MAN. The only problem I have is I own a massive sample library in GiGa format and use the sounds religiously. I found a nifty thing called G PLAYER which has aloud me to keep the files in use in this endeavor however Logic doesn't see my midisport 8x8 so I can continue using multi ports . I only see MOTU has a midi 128 that is supposed to work but there seems to be issues with MAVERICKS with both these units. Any suggestions on how to get multi ports going with this machine. Here's what I got. MAC PRO running OS X 10.9.5 /16 gigs of ram /a 3.5 GHz 6 core intel Xeon ES /256 SSD hard drive / also use the DIGI 02 ( had to rig it to work with a thunderbolt to firewire 800 adapter and then a 800 to 400 firewire cable) It works!!! Midi sport 8x8 NOTHING!!!