DDM 4000 and led's, timing problem anyone?

Just bought an DDM 4000 for the fun of it, and mapped the crap out of it toevening . Everything else is okay, but the darn thing seems to have issues with fast incominǵ MIDI-messages and simultanious MIDI-messages:

For example, these simply don't work:
- Beat phase, seems like the mixer can't cope with MIDI-messages "turn led on" and "turn led off" when they're coming for example on 130 bpm. No, won't work on slower bpm either. Led's on or off for seconds, then changes.
- Also, a MIDI-mapping for tempo master should lit one led and turn off the old master. Don't work, seems like mixer can only cope with one message at time, and since these are transferred so fast it can't cope with it.

How to replicate:
Map for example two buttons to something, and make the buttons led turn on when button is pressed. Now, press two button at the exact same time. Only one led will turn on.

Setup:
Windows 7 64-bit (SSD, 3.4Ghz C2D, 8Gb mem) Works like a charm with Mixtrack Pro and Traktor 2.5.1
DDM 4000 connected via M-Audio Midisport 2x2 Anniversary edition
NA X1
NA F1
NA Audio 2 Dj

Any ideas?