Can't vote Up of Down on an answer or question

Questions & Answers
1

For some strange reason it won’t let me vote up or down. When I try to it will say:

“You do not have permission to vote. Please log in as another user”

How do I fix this?

EDIT: Also how do you earn karma?

2

No strange reason, you just don’t have enough karma. Read the FAQ: Frequently Asked Questions - Unity Answers