Can't login to minecraft?

I have read the other questions but none of them can help me. I'm getting a message that says Unknown Username Or Password. I can't login to MInecraft.net, or the launcher to the game.

What laptop should I get? Macbook or Windows?

I really like both and I don't know which I should get. I already have a gaming PC even though it is sometimes occupied by my brother(I don't NEED to be playing games constantly) and I've been wanting a laptop of some sort lately. I'd use it for web surfing, school work, watching movies, blogging and maybe some light gaming(Minecraft, Team Fortress etc). The OS X is really neat and simple in my opinion so I wouldn't mind getting that. I also have an iPhone and I heard you can do more with your iPHone if you connect it to a MAc, is this true?

Also if someone could give me a link to some cheap prices I may have overlooked than I would be greatful!

What is OpenGL? And what should I do to play Minecraft?

Since we downgraded our PC from Windows 8 to 7 I never had the chance to play Minecraft. Please help!

Every time I try to open it it crashes and say this:

---- Minecraft Crash Report ----
// Uh… Did I do that?

Time: 6/7/14 2:04 PM
Description: Initializing game

org.lwjgl.LWJGLException: Pixel format not accelerated

(Blah blah blah, It's kinda long so I didn't copy it)

Minecraft Version: 1.7.9
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_55, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 4945752 bytes (4 MB) / 26808320 bytes (25 MB) up to 518979584 bytes (494 MB)
JVM Flags: 3 total; -XX: HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.7.9
LWJGL: 2.9.1
OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
GL Caps:
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: []
Current Language: ~~ERROR~~ NullPointerException: null
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

How to get a modded world in minecraft?

I want a world with the new ores like ruby, copper, ect. And the worlds with cool biomes. But how do I do that?

P.s. I bought minecraft on PC today?

Toshiba satellite laptop?

Ok i have a toshiba satellite m35x-s114. I'm taking it apart so i can give it a new motherboard. If possible i also want to replace the video, sound, and graphics card but i don't know where they are located so can someone help me. I'm planning on making it my gaming laptop for minecraft.

A good configuration for a gaming PC?

I have been configuring PCs on CyberPower and I don't think they are the best possible performance for my money and I was wondering if anyone could configure a PC for me and give me the link. My budget is 900$ and I want to play Call of Duty, Titan Fall, Team Fortress 2 and Minecraft, Thanks and please help.