I got the exception below and the program hanged (not crashed): Load star names from C:\Documents and Settings\user\My Documents\Stellarium\data/sky_cultures/western/star_names.fab The semaphore GlCoreInit is done The semaphore GlInit is done Loading Cities data... Waiting for UiInit for another 11000 ms ...no position data for Baxendell's unphotographable nebula 7088 ...no position data for Pelican nebula I5067 I5067, 70 ...no position data for ?³ Cyg nebula I1318 Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: "45÷10" at java.lang.NumberFormatException.forInputString(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at org.stellarium.StelUtility.getDecAngle(Unknown Source) at org.stellarium.ui.dialog.ConfigDialog.loadCities(Unknown Source) at org.stellarium.ui.dialog.ConfigDialog.createLocationConfigTab(Unknown Source) at org.stellarium.ui.dialog.ConfigDialog.<init>(Unknown Source) at org.stellarium.ui.StelUIConf.createConfigWindow(Unknown Source) at org.stellarium.ui.StelUI.initAsDisplayable(Unknown Source) at org.stellarium.ui.StelSdl.display(Unknown Source) at com.sun.opengl.impl.GLDrawableHelper.display(GLDrawableHelper.java:78) at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:288) at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194) at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:265) at javax.media.opengl.GLCanvas.display(GLCanvas.java:130) at javax.media.opengl.GLCanvas.paint(GLCanvas.java:142) at javax.media.opengl.GLCanvas.update(GLCanvas.java:213) at sun.awt.RepaintArea.updateComponent(Unknown Source) at sun.awt.RepaintArea.paint(Unknown Source) at sun.awt.windows.WComponentPeer.handleEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Waiting for UiInit for another 10000 ms Waiting for UiInit for another 9000 ms