diff --git a/term/basicdrawpane.cpp b/term/basicdrawpane.cpp
index 660d1069..1d585761 100644
--- a/term/basicdrawpane.cpp
+++ b/term/basicdrawpane.cpp
@@ -55,7 +55,7 @@ void BasicDrawPane::paintEvent(wxPaintEvent & evt)
             gc->SetPen(pen[i]);
             x = 0;
             y = h/2;
-            xstep = w/(data[i].size()-1);
+            xstep = (double)w/(double)(data[i].size()-1);
             path.MoveToPoint(x, y);
             for(auto point : data[i]){
                 y = h/2-point*h/2;
@@ -80,16 +80,9 @@ void BasicDrawPane::paintEvent(wxPaintEvent & evt)
 
 void BasicDrawPane::plotvalue(float values[])
 {
-    //std::cout << "data:" << value << std::endl;
-    //data.at(xpos) += 0.1;
     for (int i = 0; i<channels; i++) {
         data[i].at(xpos) = (float)values[i];
     }
-    xpos = (xpos+1)%data[0].size();
-    //if(wxGetUTCTimeMillis()-time > 50){
-        Refresh();
-    //    time = wxGetUTCTimeMillis();
-    //}
-    //oder
-    //Update();
+    xpos = ((int)xpos+1)%data[0].size();
+    Refresh();
 }
diff --git a/term/basicdrawpane.hpp b/term/basicdrawpane.hpp
index cec00020..af0d1697 100644
--- a/term/basicdrawpane.hpp
+++ b/term/basicdrawpane.hpp
@@ -27,5 +27,5 @@ public:
 private:
     wxLongLong time;
     std::vector<std::vector<float>> data;
-    int x,y,xpos,xstep;
+    double x,y,xpos,xstep;
 };
diff --git a/term/mainframe.cpp b/term/mainframe.cpp
index 070a8235..a35308fa 100644
--- a/term/mainframe.cpp
+++ b/term/mainframe.cpp
@@ -173,6 +173,8 @@ void ServoFrame::OnChannelChange(wxCommandEvent& event){
 }
 
 int ServoFrame::send(const string& s,bool h){
+    if(!connected)
+        connect();
     if(connected){
         if(h){//history
             if((history.size()==0 || history.back() != s) && !s.empty()){
@@ -181,9 +183,6 @@ int ServoFrame::send(const string& s,bool h){
             histpos = history.size();
         }
         txqueue.push(s);
-    }else{
-        wxMessageBox( wxT("Not connected"), wxT("Error"), wxICON_EXCLAMATION);
-        return 0;
     }
     return 1;
 }