diff --git a/src/org/fox/ttrss/ApiRequest.java b/src/org/fox/ttrss/ApiRequest.java
index 32da7bc8..57c4699c 100644
--- a/src/org/fox/ttrss/ApiRequest.java
+++ b/src/org/fox/ttrss/ApiRequest.java
@@ -52,6 +52,7 @@ public class ApiRequest extends AsyncTask<HashMap<String,String>, Integer, JsonE
 	protected int m_responseCode = 0;
 	protected String m_responseMessage;
 	protected int m_apiStatusCode = 0;
+	protected boolean m_canUseProgress = false;
 	protected Context m_context;
 	private SharedPreferences m_prefs;
 	
@@ -182,6 +183,8 @@ public class ApiRequest extends AsyncTask<HashMap<String,String>, Integer, JsonE
 
 				int contentLength = conn.getHeaderFieldInt("Api-Content-Length", -1);
 
+				m_canUseProgress = (contentLength != -1);
+				
 				while ((read = in.read(buf)) >= 0) {
 					response.append(buf, 0, read);
 					total += read;
diff --git a/src/org/fox/ttrss/GlobalState.java b/src/org/fox/ttrss/GlobalState.java
index 6bdcd97d..ba13e776 100644
--- a/src/org/fox/ttrss/GlobalState.java
+++ b/src/org/fox/ttrss/GlobalState.java
@@ -17,6 +17,7 @@ public class GlobalState extends Application {
 	public boolean m_unreadArticlesOnly = true;
 	public String m_sessionId;
 	public int m_apiLevel;
+	public boolean m_canUseProgress;
 	
 	public static GlobalState getInstance(){
 		return m_singleton;
diff --git a/src/org/fox/ttrss/OnlineActivity.java b/src/org/fox/ttrss/OnlineActivity.java
index 103b4c10..7632b622 100644
--- a/src/org/fox/ttrss/OnlineActivity.java
+++ b/src/org/fox/ttrss/OnlineActivity.java
@@ -132,8 +132,11 @@ public class OnlineActivity extends CommonActivity {
 
 		super.onCreate(savedInstanceState);
 
-		requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);	
-		requestWindowFeature(Window.FEATURE_PROGRESS);
+		if (canUseProgress()) {
+			requestWindowFeature(Window.FEATURE_PROGRESS);
+		} else {
+			requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
+		}
 		
 		setProgressBarVisibility(false);
 		setProgressBarIndeterminateVisibility(false);
@@ -165,6 +168,10 @@ public class OnlineActivity extends CommonActivity {
 			}
 		}
 	}
+	
+	protected boolean canUseProgress() {
+		return GlobalState.getInstance().m_canUseProgress;
+	}
 
 	private void switchOffline() {
 		if (m_offlineModeStatus == 2) {
@@ -1178,7 +1185,9 @@ public class OnlineActivity extends CommonActivity {
 					if (content != null) {
 						setSessionId(content.get("session_id").getAsString());
 
-						Log.d(TAG, "Authenticated!");
+						GlobalState.getInstance().m_canUseProgress = m_canUseProgress;
+						
+						Log.d(TAG, "Authenticated! canUseProgress=" + m_canUseProgress);
 
 						ApiRequest req = new ApiRequest(m_context) {
 							protected void onPostExecute(JsonElement result) {