The latch on the door seems to be broken although at this point it will still open with some effort. Pushing up on the latch it appears to go way up before it finds the pressure needed to release and it is very sloppy.
I noted these two items on the site.
Replacement parts for MAYTAG MDBH970AWQ | AppliancePartsPros.com
http://forum.appliancepartspros.com/dishwasher-repair/6599-door-latch-broken.html
Is it that simple?