sand is falling from the sky in my world. i have been playing since 1.2.5 and i know that is not soposed to happen

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought. should happen here sand should not fall from the sky

What actually happened was...:
Describe what happened here. sand fell from the sky

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ... i logged on at 12:02 3/13/12
3. ... got on my world
4. ... it loaded and sand was falling from the sky