It may be a completely separate issue to GrandmaPaula’s, but there seem to be two different login pages:
One with the login info on the left half of the screen, and ‘register with us’ on the right. This one consistently works.
One with the login info taking up the full width of the screen. This one consistently fails.
I only get to the second one of these if my session times out while I’m in the PC forum. To get out of it, click ‘login’ at the top of the screen. The system will now tell you you’re logged in, but you aren’t actually logged in to the PC - not certain what the status is in respect to the store. To fix things so you’re fully logged in, log out, then log in again.
It might seem a little perverse, but if you ever have problems logging in anywhere not just at DAZ, then logging out and logging in again are always good moves, even if you think you aren’t logged in, and if that doesn’t work then doing it one more time is always worthwhile. Other than password issues, login problems usually happen because some internal status has been corrupted, some of these are set on logout, some on login and going through the process both ways may be enough to sort them out.