diff --git a/src/os2/choice.cpp b/src/os2/choice.cpp
index 0a2f5254f6..770da88ccc 100644
--- a/src/os2/choice.cpp
+++ b/src/os2/choice.cpp
@@ -70,8 +70,9 @@ bool wxChoice::Create(
               WS_TABSTOP       |
               WS_VISIBLE;
 
-    if (lStyle & wxCLIP_SIBLINGS )
-        lSstyle |= WS_CLIPSIBLINGS;
+    // clipping siblings does not yet work
+    // if (lStyle & wxCLIP_SIBLINGS )
+    //     lSstyle |= WS_CLIPSIBLINGS;
 
     wxASSERT_MSG( !(lStyle & wxCB_DROPDOWN) &&
                   !(lStyle & wxCB_READONLY) &&
@@ -103,10 +104,10 @@ bool wxChoice::Create(
 
     // Set height to use with sizers i.e. without the dropdown listbox
     wxFont vFont = GetFont();
-    int nCx,nCy;
-    wxGetCharSize( GetHWND(), &nCx, &nCy, &vFont );
-    int nEditHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nCy);
-    SetBestFittingSize(wxSize(-1,nEditHeight));
+    int  nEditHeight;
+    wxGetCharSize( GetHWND(), NULL, &nEditHeight, &vFont );
+    nEditHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nEditHeight);
+    SetBestFittingSize(wxSize(-1,nEditHeight+4));   // +2x2 for the border
 
     return true;
 } // end of wxChoice::Create
@@ -126,8 +127,7 @@ int wxChoice::DoAppend(
 {
     int                             nIndex;
     LONG                            nIndexType = 0;
-
-    if (m_windowStyle & wxLB_SORT)
+    if (m_windowStyle & wxCB_SORT)
         nIndexType = LIT_SORTASCENDING;
     else
         nIndexType = LIT_END;
@@ -150,7 +150,7 @@ int wxChoice::DoInsert( const wxString& rsItem, unsigned int pos )
     int  nIndex;
     LONG nIndexType = 0;
 
-    if (m_windowStyle & wxLB_SORT)
+    if (m_windowStyle & wxCB_SORT)
         nIndexType = LIT_SORTASCENDING;
     else
         nIndexType = pos;
@@ -225,7 +225,7 @@ void wxChoice::SetString(unsigned int n, const wxString& rsStr)
 
     ::WinSendMsg(GetHwnd(), LM_DELETEITEM, (MPARAM)n, 0);
 
-    if (m_windowStyle & wxLB_SORT)
+    if (m_windowStyle & wxCB_SORT)
         nIndexType = LIT_SORTASCENDING;
     else
         nIndexType = LIT_END;
diff --git a/src/os2/combobox.cpp b/src/os2/combobox.cpp
index cc804d4354..f1862b75bf 100644
--- a/src/os2/combobox.cpp
+++ b/src/os2/combobox.cpp
@@ -129,8 +129,9 @@ bool wxComboBox::Create(
     lSstyle = WS_TABSTOP   |
               WS_VISIBLE;
 
-    if (lStyle & wxCLIP_SIBLINGS )
-        lSstyle |= WS_CLIPSIBLINGS;
+    // clipping siblings does not yet work
+    // if (lStyle & wxCLIP_SIBLINGS )
+    //     lSstyle |= WS_CLIPSIBLINGS;
     if (lStyle & wxCB_READONLY)
         lSstyle |= CBS_DROPDOWNLIST;
     else if (lStyle & wxCB_SIMPLE)
@@ -163,10 +164,10 @@ bool wxComboBox::Create(
 
     // Set height to use with sizers i.e. without the dropdown listbox
     wxFont vFont = GetFont();
-    int nCx,nCy;
-    wxGetCharSize( GetHWND(), &nCx, &nCy, &vFont );
-    int nEditHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nCy);
-    SetBestFittingSize(wxSize(-1,nEditHeight));
+    int nEditHeight;
+    wxGetCharSize( GetHWND(), NULL, &nEditHeight, &vFont );
+    nEditHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nEditHeight);
+    SetBestFittingSize(wxSize(-1,nEditHeight+4));   // +2x2 for the border
 
     if (!rsValue.empty())
     {
@@ -388,7 +389,7 @@ bool wxComboBox::ProcessEditMsg(
                 return(HandleKillFocus((WXHWND)(HWND)wParam));
     }
     return false;
-} // end of WinGuiBase_CComboBox::ProcessEditMsg
+} // end of wxComboBox::ProcessEditMsg
 
 MRESULT EXPENTRY wxComboEditWndProc(
   HWND                              hWnd
diff --git a/src/os2/control.cpp b/src/os2/control.cpp
index 5b74ae803e..51eff786ee 100644
--- a/src/os2/control.cpp
+++ b/src/os2/control.cpp
@@ -131,6 +131,9 @@ bool wxControl::OS2CreateControl( const wxChar*   zClassname,
     else
         label = m_label;
 
+    // clipping siblings does not yet work
+    dwStyle &= ~WS_CLIPSIBLINGS;
+
     m_hWnd = (WXHWND)::WinCreateWindow( (HWND)GetHwndOf(pParent) // Parent window handle
                                        ,(PSZ)zClass              // Window class
                                        ,(PSZ)label.c_str()       // Initial Text