I'm trying to check-in for my 7a SEA-MSP flight tomorrow morning. Its a nwa.com purchased, nwa metal, nw platinum worldperks number reservation thats been upgraded to R class. It's walking me all the way through (I chose the number of bags) and it chokes up and says its unable to complete the check-in transaction. I find this highly irregular as Its never been a problem I've had before. Is anyone else having a similar problem today or have you encountered this lately? I'm wanting to check-in because god only knows what the newly combined NW/DL checkin area at SEA is going to look like tomorrow morning!