Is Herobrine real on minecraft?

A lot of people say he is real some of them don't. But I have saw herobrine in minecraft with my friend j… E but it was prob him

Any ideas of things to build on minecraft?

My friend and I are making minecraft lands for each other (because we have nothing else better to do.)

What are some things to build? Give as many ideas as possible, as I have to fill up the whole map.

Laptop acting really weird?

It's about eight months old or so, an HP Envy m7 Notebook PC. A while ago I noticed that it would randomly start lagging really bad, and literally begin running in slow motion. Any music that's playing would play in slow motion, moving the mouse around would cause it to skip and jump around, and if I'm watching a video it will skip too. When this happens the fan with run really loud.

It used to only do it every now and then and it wouldn't stop until I restarted my laptop ever since yesterday it does it all the time. Only when I'm running a video game or something, though--but that used to not happen. I used to be able to run whatever video game I wanted, plus iTunes, plus have a browser open, no big deal at all.

Yesterday I was running Minecraft, and it wasn't lagging or anything, when suddenly I got a blue screen that said it had encountered a problem and needed to restart. It restarted and I viewed the details of the restart, and it had experienced issues in three different locations. I remember one was in an AppData folder, another said something about memory, and the other was computer gibberish I don't understand. I figured that meant it was something with the physical memory (I think that's what it's called? The amount of memory that goes on your screen), but I'm not sure.

I'm running a full virus scan now, and it's at 87% and hasn't detected anything. Any help? I Googled and couldn't find anything similar.

Strange sounds in minecraft?

It is night time and i'm out in the open on the top of a mountain. There's this creepy sound followed by a scream. Then one of the endermens disappear. Its still night and i'm still alive but i don't know what the strange noise was. Or sometimes when i'm on a mountain collecting resources i hear someone whisper: don't look back don't look back, he is coming, don't look back. What does that mean. When i hear those noises i run to a safe house, then n othing happens.

Roller Coaster Simulator Game Help! Which is a good Roller Coaster game?

I've been feeling rather bored lately, and Sims and Minecraft aren't doing it for me anymore. So I wanted to Build some roller coasters.(yeah… I know, really random) However, I know of very little in the field of rollercoaster simulations/building games. I heard of Thrillville: Off the Rails. A theme park creator following a simple yet easy story line of build the best park. The game looks and feels pretty good and the interface is easy. You can even ride your rides with a P.o.V shot, it's really cool!

Then I heard of the Roller Coaster Tycoon series. Most recently RCT:2. It has even MORE freedom than Thrillville, yet more simple, using sprites instead. However, you can't enjoy ridding your creations at all which is a little bit of a buzz kill and it plays more like a heavy plot game… Meaning there's no time to fudge around and have fun… As in I'm not sure about a more sand-boxy mode for the game. I NEED that.

So I suppose what I'm asking is, What's a good Roller Coaster simulator/Theme Park Simulator for Windows. A game that has a more sandbox feel and the ability to ride the coasters you make or more enjoy-ability to your creations. You guys know what I'm saying?

Is Thrillville really the best game for fitting this? I don't know that's why I'm asking. I don't care about graphics, I just need it For Windows. I have Window 7 and I'm not too sure about anything else.

Any help you can give will be welcome.

I can't see anything in minecraft? - 1

I have recently installed a new driver update for my graphics card, but then i can't see anything. I have tried uninstalling it and reinstalling it.

Minecraft animals going through blocks?

I thought they had fixed this bug in 1.6.2? My sheep are still going through blocks and I can't keep them separated by colour? It's bothering me a lot because they either get into the incorrect pens or they end up in the hallway and I have to round them up again.
I'm playing version 1.7.4.

Also, a grammar check; are the sheep "fazing" through the walls or "phasing?"

Added (1). It is not when the chunk is unloaded. I have stayed in my house the entire time, and my farm is connected to my house. I just ran downstairs to get the other sheep and when I came out one of them was out yet again.

How to play Minecraft with someone who doesn't have internet access?

I have Minecraft on two computers, one has internet and the other doesn't. Is it possible to play Minecraft together if one doesn't have internet but the other does. Could the one with no internet connect to the one that does is basically what I'm trying to say, if you know please tell me how.