when i go on a server every1 but me is a steve in 1.7.9

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
every1 wouldn't be a steve
What actually happened was...:
Describe what happened here
"the steve army attacked"
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. well I just logged on 1 .7.9...
3. I think It could've been caused by the downtime...