01-05 06:36:15.234: ERROR/AndroidRuntime(356): Uncaught handler: thread main exiting due to uncaught exception
01-05 06:36:15.244: ERROR/AndroidRuntime(356): java.lang.IllegalThreadStateException: Thread already started.
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at java.lang.Thread.start(Thread.java:1322)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at com.android.drawingpad.DrawingPad$DrawingPanel.surfaceCreated(DrawingPad.java:269)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.SurfaceView.updateWindow(SurfaceView.java:454)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.SurfaceView.onWindowVisibilityChanged(SurfaceView.java:189)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.View.dispatchWindowVisibilityChanged(View.java:3782)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:691)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:691)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:691)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:691)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.ViewRoot.performTraversals(ViewRoot.java:706)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1633)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.os.Handler.dispatchMessage(Handler.java:99)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.os.Looper.loop(Looper.java:123)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at android.app.ActivityThread.main(ActivityThread.java:4338)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at java.lang.reflect.Method.invokeNative(Native Method)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at java.lang.reflect.Method.invoke(Method.java:521)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
01-05 06:36:15.244: ERROR/AndroidRuntime(356):     at dalvik.system.NativeStart.main(Native Method)

부탁드립니다.