diff --git a/src/PrusaSlicer.cpp b/src/PrusaSlicer.cpp
index 92ff65a843..81422f4a88 100644
--- a/src/PrusaSlicer.cpp
+++ b/src/PrusaSlicer.cpp
@@ -60,7 +60,6 @@ PrinterTechnology get_printer_technology(const DynamicConfig &config)
 
 int CLI::run(int argc, char **argv)
 {
-#ifdef _WIN32
 	// Switch boost::filesystem to utf8.
     try {
         boost::nowide::nowide_filesystem();
@@ -74,12 +73,12 @@ int CLI::run(int argc, char **argv)
         	SLIC3R_APP_NAME " will now terminate.\n\n") + ex.what();
     #ifdef SLIC3R_GUI
         if (m_actions.empty())
+        	// Empty actions means Slicer is executed in the GUI mode. Show a GUI message.
             MessageBoxA(NULL, text.c_str(), caption.c_str(), MB_OK | MB_ICONERROR);
     #endif
         boost::nowide::cerr << text.c_str() << std::endl;
         return 1;
     }
-#endif
 
 	if (! this->setup(argc, argv))
 		return 1;
diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 9b4522356a..dff9fc1a97 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -293,6 +293,20 @@ bool GUI_App::on_init_inner()
                 config_wizard_startup(app_conf_exists);
                 preset_updater->slic3r_update_notify();
                 preset_updater->sync(preset_bundle);
+                const GLCanvas3DManager::GLInfo &glinfo = GLCanvas3DManager::get_gl_info();
+                if (! glinfo.is_version_greater_or_equal_to(2, 0)) {
+                	// Complain about the OpenGL version.
+                	wxString message = wxString::Format(
+                		_(L("PrusaSlicer requires OpenGL 2.0 capable graphics driver to run correctly, \n"
+                			"while OpenGL version %s, render %s, vendor %s was detected.")), wxString(glinfo.get_version()), wxString(glinfo.get_renderer()), wxString(glinfo.get_vendor()));
+                	message += "\n";
+                	message += _(L("You may need to update your graphics card driver."));
+#ifdef _WIN32
+                	message += "\n";
+                	message += _(L("As a workaround, you may run PrusaSlicer with a software rendered 3D graphics by running prusa-slicer.exe with the --sw_renderer parameter."));
+#endif
+                	wxMessageBox(message, wxString("PrusaSlicer - ") + _(L("Unsupported OpenGL version")), wxOK | wxICON_ERROR);
+                }
             });
         }
     });