Minecraft Error

hello i am unable to play minecraft via this error please help if you can Minecraft has crashed! ---------------------- Minecraft has stopped running because it encountered a problem. If you wish to report this, please copy this entire text and email it to support@mojang.com. Please include a description of what you did when the error occured. --- BEGIN ERROR REPORT a1dce528 -------- Generated 12/20/10 5:18 PM Minecraft: Minecraft Beta 1.0_01 OS: Windows Vista (x86) version 6.0 Java: 1.6.0_21, Sun Microsystems Inc. VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc. LWJGL: 2.4.2 OpenGL: Intel Bear Lake B version 1.4.0 - Build 7.14.10.1437, Intel java.nio.BufferOverflowException at java.nio.DirectByteBuffer.put(Unknown Source) at java.nio.ByteBuffer.put(Unknown Source) at gd.a(SourceFile:148) at gd.a(SourceFile:62) at net.minecraft.client.Minecraft.i(SourceFile:1053) at net.minecraft.client.Minecraft.run(SourceFile:677) at java.lang.Thread.run(Unknown Source) --- END ERROR REPORT 530abbae ---------- http://www.minecrafterrormessage.webs.com/