Reset to 0? As in, was blocked?

It appears to be working, though I would appreciate additional detail.

Fixed.

Remember, that the API limit is per-IP and per-site. For you, the important part is per-site.

So, SO gets 10,000 requests a day, SF gets 10,000 requests a day, etc. etc. This can make your about kind of... confusing, as its showing the last requests headers.