diff --git a/modules/particle.otpa b/modules/particle.otpa
index 6720a01a..88de09d7 100644
--- a/modules/particle.otpa
+++ b/modules/particle.otpa
@@ -1,5 +1,4 @@
 ParticleSystem
-    
   AttractionAffector
     destination: 200 200
     acceleration: 64
@@ -11,32 +10,24 @@ ParticleSystem
     burstRate: 2
     burstCount: 1
     delay: 0.5
-
     particle-duration: 9999
     particle-position-radius: 0
-    
-    particle-velocity: 64
+    particle-velocity: 32
     particle-velocity-angle: 0
-    
     particle-acceleration: 0
-
     particle-size: 32 32
     particle-color: #33ff33ff
     particle-texture: circle2.png
-    
+
   Emitter
     position: 200 200
     burstRate: 9999999999
     burstCount: 1
-
     particle-duration: 9999999
     particle-position-radius: 0
-    
     particle-velocity: 0
     particle-velocity-angle: 0
-    
     particle-acceleration: 0
-
     particle-size: 32 32
     particle-color: #33ff33ff
     particle-texture: circle2.png
diff --git a/src/framework/core/clock.h b/src/framework/core/clock.h
index 39c2a747..72f68330 100644
--- a/src/framework/core/clock.h
+++ b/src/framework/core/clock.h
@@ -48,5 +48,20 @@ private:
 
 extern Clock g_clock;
 
+class Timer
+{
+public:
+    Timer() { restart(); }
+
+    void restart() { m_startTicks = g_clock.ticks(); }
+
+    ticks_t startTicks() { return m_startTicks; }
+    ticks_t ticksElapsed() { return g_clock.ticks() - m_startTicks; }
+    double timeElapsed() { return ticksElapsed()/1000.0; }
+
+private:
+    ticks_t m_startTicks;
+};
+
 #endif
 
diff --git a/src/framework/platform/x11window.cpp b/src/framework/platform/x11window.cpp
index 5e36c4a0..5a786df6 100644
--- a/src/framework/platform/x11window.cpp
+++ b/src/framework/platform/x11window.cpp
@@ -562,6 +562,7 @@ void X11Window::poll()
                 int len;
 
                 m_inputEvent.keyboardModifiers = 0;
+                m_inputEvent.keyText = "";
                 if(event.xkey.state & ControlMask)
                     m_inputEvent.keyboardModifiers |= Fw::KeyboardCtrlModifier;
                 if(event.xkey.state & ShiftMask)
@@ -590,6 +591,11 @@ void X11Window::poll()
                         //logDebug("char: ", buf[0], " code: ", (uint)buf[0]);
                         m_inputEvent.keyText = buf;
                     }
+                } else {
+                    len = XLookupString(&event.xkey, buf, sizeof(buf), &keysym, 0);
+
+                    if(len > 0)
+                        m_inputEvent.keyText = buf;
                 }
 
                 if(m_keyMap.find(keysym) != m_keyMap.end())
diff --git a/src/framework/ui/uilineedit.cpp b/src/framework/ui/uilineedit.cpp
index 31ea118d..4d3b1e5f 100644
--- a/src/framework/ui/uilineedit.cpp
+++ b/src/framework/ui/uilineedit.cpp
@@ -427,7 +427,7 @@ bool UILineEdit::onKeyPress(uchar keyCode, std::string keyText, int keyboardModi
             if(UIWidgetPtr parent = getParent())
                 parent->focusNextChild(Fw::TabFocusReason);
         }
-    } else if(!keyText.empty())
+    } else if(!keyText.empty() && (keyboardModifiers == Fw::KeyboardNoModifier || keyboardModifiers == Fw::KeyboardShiftModifier))
         appendText(keyText);
     else
         return false;
diff --git a/src/otclient/ui/uigame.cpp b/src/otclient/ui/uigame.cpp
index 21a781ba..2f84cc78 100644
--- a/src/otclient/ui/uigame.cpp
+++ b/src/otclient/ui/uigame.cpp
@@ -100,7 +100,7 @@ bool UIGame::onKeyPress(uchar keyCode, std::string keyText, int keyboardModifier
         }
     }
 
-    if(!keyText.empty()) {
+    if(!keyText.empty() && (keyboardModifiers == Fw::KeyboardNoModifier || keyboardModifiers == Fw::KeyboardShiftModifier)) {
         chatLineEdit->appendText(keyText);
         return true;
     }