hello all i get a crash while playing SMP on my server. i can be anywhere and doing anything ( or nothing ) and it still happens. this is the error i get can anyone dive me some insight into why this is going on ? 
java.io.IOException: Bad packet id 118
at vl.a(SourceFile:139)
at iq.e(SourceFile:190)
at iq.c(SourceFile:10)
at no.run(SourceFile:77)
java.lang.RuntimeException: java.lang.NoSuchFieldException: acti
at ic2.platform.NetworkManager.handlePacket(NetworkManager.java:170)
at ic2.platform.Ic2.HandlePacket(Ic2.java:266)
at ModLoaderMp.HandleAllPackets(ModLoaderMp.java:83)
at Packet230ModLoader.a(Packet230ModLoader.java:147)
at iq.b(SourceFile:272)
at wt.b(NetClientHandler.java:64)
at gx.c(SourceFile:57)
at net.minecraft.client.Minecraft.k(SourceFile:1388)
at net.minecraft.client.Minecraft.run(SourceFile:666)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchFieldException: acti
at ic2.platform.NetworkManager.handlePacket(NetworkManager.java:130)
... 9 more
Stopping!
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException: componen
argument pData
at sun.java2d.windows.GDIWindowSurfaceData.initOps(Native Method)
at sun.java2d.windows.GDIWindowSurfaceData.<init>(Unknown Source)
at sun.java2d.windows.GDIWindowSurfaceData.createData(Unknown Source)
at sun.java2d.d3d.D3DScreenUpdateManager.getGdiSurface(Unknown Source)
at sun.java2d.d3d.D3DScreenUpdateManager.createGraphics(Unknown Source)
at sun.awt.windows.WComponentPeer.getGraphics(Unknown Source)
at java.awt.Component.getGraphics(Unknown Source)
at sun.awt.RepaintArea.paint(Unknown Source)
at sun.awt.windows.WComponentPeer.handleEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Sou
ce)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Sou
ce)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Sou
ce)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)