I have an issue I have not been able to figure out and it is only happening on devices running <2.1. It works fine on android 2.2. I have ansynchronous task that displays a loading dialog while it loads all the tabs. Here is the code for the TabActivity:

public class OppTabsView extends TabActivity {
Dialog dialog;
String errorText;
boolean save;
final int OPP_SAVE = 0;
public static boolean edited;

public void onCreate(Bundle icicle) {

    try {
        super.onCreate(icicle);
        new DoInBackground().execute();

    } catch (Exception e) {
        Toast.makeText(this, "Error occured. Please try again later.",
                Toast.LENGTH_SHORT).show();

    }

}

@Override
protected void onResume() {
    super.onResume();
}

@Override
protected void onStop() {
    super.onStop();

}

@Override
protected void onPause() {
    super.onPause();

}

public boolean onCreateOptionsMenu(Menu menu) {
    menu.add(0, OPP_SAVE, 0, "Test");
    return true;
}

public boolean onOptionsItemSelected(MenuItem item) {

    switch (item.getItemId()) {

    case OPP_SAVE:
        save = true;
        new DoInBackground().execute();

        return true;

    }

    return false;

}

public void LoadOpp() {
    handler.sendEmptyMessage(0);
}

public void SaveOpp() {
    DoStuff();

}

public void LoadLayout() {
    setContentView(R.layout.view_opptabs);

    /* TabHost will have Tabs */
    TabHost tabHost = (TabHost) findViewById(android.R.id.tabhost);

    /*
     * TabSpec used to create a new tab. By using TabSpec only we can able
     * to setContent to the tab. By using TabSpec setIndicator() we can set
     * name to tab.
     */

    /* tid1 is firstTabSpec Id. Its used to access outside. */
    TabSpec firstTabSpec = tabHost.newTabSpec("tid1");
    TabSpec secondTabSpec = tabHost.newTabSpec("tid1");
    TabSpec thirdTabSpec = tabHost.newTabSpec("tid1");

    /* TabSpec setIndicator() is used to set name for the tab. */
    /* TabSpec setContent() is used to set content for a particular tab. */

    firstTabSpec.setIndicator("General",
            getResources().getDrawable(R.drawable.tab_moneybag))
            .setContent(new Intent(this, OppTabGeneral.class));
    secondTabSpec.setIndicator("Details",
            getResources().getDrawable(R.drawable.tab_papers)).setContent(
            new Intent(this, OppTabDetails.class));
    thirdTabSpec.setIndicator("Contact",
            getResources().getDrawable(R.drawable.tab_contact)).setContent(
            new Intent(this, OppTabContact.class));

    /* Add tabSpec to the TabHost to display. */
    tabHost.addTab(firstTabSpec);
    tabHost.addTab(secondTabSpec);
    tabHost.addTab(thirdTabSpec);

}

private void do_update() {
    if (save) {
        SaveOpp();
    } else {
        LoadOpp();
    }
}

Handler handler = new Handler() {
    public void handleMessage(Message msg) {
        LoadLayout();
    }
};

private class DoInBackground extends AsyncTask<Void, Void, Void> implements
        DialogInterface.OnCancelListener {

    protected void onPreExecute() {

        String verb = "Connecting";
        if (save) {
            verb = "Saving";
        }
        dialog = ProgressDialog.show(OppTabsView.this, "", verb
                + ".  Please Wait...", true, true, this);
    }

    protected Void doInBackground(Void... v) {
        do_update();
        return null;
    }

    protected void onPostExecute(Void v) {
        dialog.dismiss();


    }

    public void onCancel(DialogInterface dialog) {
        cancel(true);
        dialog.dismiss();
        finish();
    }
}
}

Here is the stack trace from the error:

java.lang.NullPointerException
at android.widget.TabWidget.dispatchDraw(TabWidget.java:206)
at android.view.ViewGroup.drawChild(ViewGroup.java:1529)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
at android.view.ViewGroup.drawChild(ViewGroup.java:1529)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
at android.view.ViewGroup.drawChild(ViewGroup.java:1529)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
at android.view.View.draw(View.java:6538)
at android.widget.FrameLayout.draw(FrameLayout.java:352)
at android.view.ViewGroup.drawChild(ViewGroup.java:1531)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
at android.view.ViewGroup.drawChild(ViewGroup.java:1529)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
at android.view.View.draw(View.java:6538)
at android.widget.FrameLayout.draw(FrameLayout.java:352)
at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1830)
at android.view.ViewRoot.draw(ViewRoot.java:1349)
at android.view.ViewRoot.performTraversals(ViewRoot.java:1114)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1633)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4363)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
at dalvik.system.NativeStart.main(Native Method)

I have tried stepping through it but the error seems to come out of no where, not at a specific line. Any help is greatly appreciated.