I downloaded minecraft and typed in my user , loged in and then it crashed. I tried it a couple more times but the same thing happens. Tryed it online but the same message appeared.

--- BEGIN ERROR REPORT a1dce528 --------
Generated 2/18/11 9:22 PM

Minecraft: Minecraft Beta 1.2_02
OS: Windows 7 (x86) version 6.1
Java: 1.6.0_24, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: Intel 965/963 Graphics Media Accelerator version 2.0.0 - Build 8.14.10.1930, Intel

java.lang.IllegalArgumentException: input == null!
    at javax.imageio.ImageIO.read(Unknown Source)
    at nh.<init>(SourceFile:26)
    at net.minecraft.client.Minecraft.a(SourceFile:259)
    at net.minecraft.client.Minecraft.run(SourceFile:606)
    at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT ff7621f ----------

I deleted it and reinstalled but the same thing happened, tried reinstalling java and again same message.

Please if anyone had the same problem help me