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really not sure why this is happening now.. i've had optifine hd installed for several weeks now, and just today it decided to become a problem?

on the other hand....

the evening before this my pc crashed while i was watching youtube.. "thread stuck in driver"

so i decided to try and update my AMD Radeon.. then my pc crashed while trying to do that...

so. im guessing this might be a larger issue with my pc.. possibly windows 10 on my machine, as a google search would suggest.

but for now, let's solve one thing at a time..

my crash report:

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 8/10/16 1:26 PM
Description: Initializing game

org.lwjgl.LWJGLException: Pixel format not accelerated
	at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
	at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
	at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:247)
	at org.lwjgl.opengl.Display.createWindow(Display.java:306)
	at org.lwjgl.opengl.Display.create(Display.java:848)
	at org.lwjgl.opengl.Display.create(Display.java:757)
	at org.lwjgl.opengl.Display.create(Display.java:739)
	at bcx.ap(SourceFile:598)
	at bcx.an(SourceFile:434)
	at bcx.a(SourceFile:381)
	at net.minecraft.client.main.Main.main(SourceFile:124)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:27)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Client thread
Stacktrace:
	at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
	at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
	at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:247)
	at org.lwjgl.opengl.Display.createWindow(Display.java:306)
	at org.lwjgl.opengl.Display.create(Display.java:848)
	at org.lwjgl.opengl.Display.create(Display.java:757)
	at org.lwjgl.opengl.Display.create(Display.java:739)
	at bcx.ap(SourceFile:598)
	at bcx.an(SourceFile:434)

-- Initialization --
Details:
Stacktrace:
	at bcx.a(SourceFile:381)
	at net.minecraft.client.main.Main.main(SourceFile:124)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

-- System Details --
Details:
	Minecraft Version: 1.10.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_91, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 104113352 bytes (99 MB) / 162738176 bytes (155 MB) up to 523501568 bytes (499 MB)
	JVM Flags: 7 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Xmx512M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.10.2-OptiFine_HD_U_C1
	LWJGL: 2.9.4
	OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
	GL Caps: 
	Using VBOs: Yes
	Is Modded: Very likely; Jar signature invalidated
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: ~~ERROR~~ NullPointerException: null
	Profiler Position: N/A (disabled)
	CPU: <unknown>
	OptiFine Version: OptiFine_1.10.2_HD_U_C1
	Render Distance Chunks: 13
	Mipmaps: 0
	Anisotropic Filtering: 1
	Antialiasing: 0
	Multitexture: false
	Shaders: null
	OpenGlVersion: null
	OpenGlRenderer: null
	OpenGlVendor: null
	CpuCount: 2