Broken login into the preview grid?

I just tried to log onto the preview grid with several different accounts (after the first one didn't work), all of which were born before july 19, and it keeps saying password incorrect, but i can still log onto the fourms with the same password. I even changed my pasword but still with no luck twords laggin' in. Anyone else having this problem?

The password for your account would be same as the one you had on June 19th. If you are still having trouble, e-mail me at [email]don@lindenlab.com[/email] using the email you have listed on your account and I will change your password on the preview grid.

OK I got in, but then I am struck dumb with HORRIBLE lag, it would kill me if this happened in the REAL sl, it was just as horrible as 2/06's death lag, it took me 5 minutes to take one step, don't even get me started on opening inventory and menus, rezing and IM were also screwed, and all same in preview grid.... atleast for me.