Hello Blackberry forums! I'm really excited for you helping me out, Here's my problem.

Recently I've migrated from my iPhone to a blackberry Curve. I was at the movies last night and watching SAW 6, Jumped out of my seat with the blackberry in my hand and it took a spill to the floor.. No scratches just the scroll ball and ring fell off (not the actual ball, like the ball and the device attached to it). I put it back on and it snapped in, but for some reason, The scroll ball isn't clicking as much as it has before hand..

Should i purchase a replacement off eBay or anything? What should I do?

Thanks!