[Tekkit Launcher Error - Crash]

when i open the tekkit launcher and i log in, there is this error

Mods loaded: 38

ModLoader 1.1

mod_ModLoaderMp 1.1v4

mod_MinecraftForge 1.3.3.12

mod_NotEnoughItems 1.1.1

mod_ReiMinimap v3.0_01 [1.1]

mod_BuildCraftCore 2.2.12

mod_BuildCraftBuilders 2.2.12

mod_BuildCraftEnergy 2.2.12

mod_BuildCraftFactory 2.2.12

mod_BuildCraftTransport 2.2.12

mod_IC2 v1.71

mod_IC2AdvancedMachines v3.6

mod_PowerConverters 1.1.0R1.3.1

mod_RedPowerArray 2.0pr4d

mod_RedPowerCore 2.0pr4d

mod_RedPowerLighting 2.0pr4d

mod_RedPowerLogic 2.0pr4d

mod_RedPowerMachine 2.0pr4d

mod_RedPowerWiring 2.0pr4d

mod_RedPowerWorld 2.0pr4d

mod_Clevercraft 1.6.2

mod_ItemDescriptions 1.3

mod_EnderChest 1.0.1

mod_zAdditionalPipes Rev32.3

mod_CCTurtle 1.3

mod_ComputerCraft 1.3

mod_DoorFix 1.1.0

mod_EE EE2 v1.0.0

mod_Forestry 1.2.6.5

mod_InvTweaks 1.38 (1.1)

mod_MAtmos_forModLoader r10 for 1.1.x

mod_CompactSolars 1.2

mod_IC2_ChargingBench 1.71-1

mod_NetherOres 1.1.0R1.1.2

mod_Railcraft 3.4.2

Balkon's WeaponMod 1.1.0 v8.4.0 SMP Edition

mod_WirelessRedstone 1.5

mod_WirelessRedstoneClient 1.5

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 [email protected].

Please include a description of what you did when the error occured.

--- BEGIN ERROR REPORT 33191872 --------

Generated 04/06/12 10.14

Minecraft: Minecraft 1.1

OS: Windows 7 (x86) version 6.1

Java: 1.7.0_04, Oracle Corporation

VM: Java HotSpot Client VM (mixed mode, sharing), Oracle Corporation

LWJGL: 2.4.2

OpenGL: Intel® G41 Express Chipset version 2.1.0 - Build 8.15.10.2302, Intel

java.util.FormatFlagsConversionMismatchException: Conversion = h, Flags =

at java.util.Formatter$FormatSpecifier.failMismatch(Unknown Source)

at java.util.Formatter$FormatSpecifier.checkBadFlags(Unknown Source)

at java.util.Formatter$FormatSpecifier.checkGeneral(Unknown Source)

at java.util.Formatter$FormatSpecifier.<init>(Unknown Source)

at java.util.Formatter.parse(Unknown Source)

at java.util.Formatter.format(Unknown Source)

at java.util.Formatter.format(Unknown Source)

at java.lang.String.format(Unknown Source)

at abn.a(SourceFile:142)

at ModLoader.initStats(ModLoader.java:948)

at ModLoader.init(ModLoader.java:843)

at ModLoader.AddAllRenderers(ModLoader.java:189)

at afq.<init>(afq.java:80)

at afq.<clinit>(afq.java:9)

at net.minecraft.client.Minecraft.a(Minecraft.java:316)

at net.minecraft.client.Minecraft.run(Minecraft.java:624)

at java.lang.Thread.run(Unknown Source)

--- END ERROR REPORT d35a269 ----------

I have updated java, i have cleared the cache and i have changed memory to allocate to 512 MB

anyone can help me?