Emu XL-7 & MP-7 User's Group

I have a Roland D-10 Keyboard, with no manual, I have m4 midi cables 
male2male, 2 midi cables from my PC male2male with gender changers 
on the end.  I have the D10 out going to the in on the MP-7 and thru 
going to the in on the pc.  My problem is why the midi in on the MP-
7 is constantly blinking fast.  Is this bad for the MP-7? or 
anything in my setup?

DJ_vgrep