clearing your cache (especially on Chrome) really does help.

I had the same issue as you. As long as I clear my history before I log in, I'm able to proceed.

Have fun!

I've tried with hotmail,gmail and @my internet provider...Same thing with each-Email invalid-password invalid-password confirm invalid-user name invalid.Have tried different usernames.Was told in Live Chat this morning that it's a software issue they're working on,should be better tonight.Pretty much what I was told yesterday.

back-end databases not getting updated for whatever reason. Perhaps due to load or perhaps just some bad design decision (although, not being able to handle the load probably be classified a bad design decision)

I was able to finally create my account a few days ago, so I think they might have finally got things working somewhat decently.

with data from point one used for one purpose and data from point two used for another.

So if data is updated in one place and not the other....

I noticed I was able to get password reset links sent to me, but the system still said it wasn't a valid account.

I would have played with it more to see if I could collect more information, but I resisted the urge because I figured I'd just be adding to the problem..

I see it all the time.

like the exchanges. I'm actually really disappointed in how that turned out. They had plenty of time to build such a system, and there is lots of talent and experience with building systems meant to handle high loads and even automagically scale up/out/down/in as needed. I just don't understand why they didn't tap into that.

My e-mail address is still @hotmail.com

I've got a verified account but haven't completed enrollment, so it says "Review your Application details in your Marketplace Account..." with a link to go to. Click the link and it takes you to a page that says doesn't exist. Hopefully they'll get it ironed out soon