Index: src/sdk/projectmanager.cpp
===================================================================
--- src/sdk/projectmanager.cpp    (revision 4237)
+++ src/sdk/projectmanager.cpp    (working copy)
@@ -2590,9 +2590,17 @@
         if(name != new_name)
         {
             #if wxCHECK_VERSION(2, 8, 0)
-            if (!wxRenameFile(path + name, path + new_name, false))
+            // workaround: on windows we allow overwriting if the user wants to change the case of the filename
+            bool overwrite = false;
+            if (platform::windows && name.IsSameAs(new_name, false))
+                overwrite = true;
+            if (!wxRenameFile(path + name, path + new_name, overwrite))
             #else // wx-2.6 doesn't check whether it's overwriting an existing file
-            if(wxFileExists(path + new_name))
+            // workaround: on windows we skip wxFileExists if the user wants to change the case of the filename
+            bool skip = false;
+            if (platform::windows && name.IsSameAs(new_name, false))
+                skip = true;
+            if(!skip && wxFileExists(path + new_name))
             {
                 cbMessageBox(_("Can't rename file ") + path + new_name +
                              _("\nA file with specified filename already exists!") +