Logic Studio 9.1.7 hangs during "Checking MiDI Drivers" when starting up.

Everytime since this update that I've tried to start Logic Pro it hangs during the "Checking MiDI Drivers" process (I use a Novation Nocturn 25). When it finally loads after like 5 minutes I get this message:

Logic Pro has detected a MIDI timeout. Please restart your computer, then relaunch Logic Pro. If the problem persists, update the drivers of all connected MIDI devices (including audio drivers with MIDI functionality) to the latest version. For instructions on removing older drivers, consult the manufacturers' documentation.

I've tried going to my HD then going to Library then going to MiDI drivers folder to move them to the desktop, but there is nothing in there. Anyone else have this problem and can help?