--- a/src/gui/image/qpixmap.cpp	Fri Sep 17 08:34:18 2010 +0300
+++ b/src/gui/image/qpixmap.cpp	Mon Oct 04 01:19:32 2010 +0300
@@ -830,15 +830,17 @@
         return false;
 
     QFileInfo info(fileName);
-    if (!info.exists())
-        return false;
-
     QString key = QLatin1Literal("qt_pixmap")
                   % info.absoluteFilePath()
                   % HexString<uint>(info.lastModified().toTime_t())
                   % HexString<quint64>(info.size())
                   % HexString<uint>(data ? data->pixelType() : QPixmapData::PixmapType);
 
+    // Note: If no extension is provided, we try to match the 
+    // file against known plugin extensions
+    if (!info.completeSuffix().isEmpty() && !info.exists())
+        return false;
+
     if (QPixmapCache::find(key, *this))
         return true;