I just got my MK-50. It feels great but will definitely take some getting used to. However it didn't work when connecting it via PS2. Am I missing something?
I've got this keyboard, still trying to get used to it. I still type too hard and go way past the activation point.
As for the PS2 thing, mine was fine, plug in and go as I recall.
Are you sure your PS2 port is working ok?