Can't say much about the password issue. It's happened a few times for me, but I've never confirmed that it isn't just user error. I know sometimes students just leave on the Caps Lock key.
I see 24 problems under Calculus->Partial Derivatives->Lagrange Multipliers in the National Problem Library. I'm using Webwork for Multivariable also. I'll be hitting Lagrange Multipliers next week. -Dennis
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Student Passwords stop working
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