fix bug #82863: unbreak compilation for gcc 2.95

Thanks to Michael Nottebrock for pointing to this problem!

svn path=/branches/KDE_3_2_BRANCH/kdeedu/kbruch/; revision=317825

src/mainqtwidget.cpp

@@ -92,7 +92,7 @@ void MainQtWidget::readOptions()
 	m_maxMainDenominator = m_config->readNumEntry("max_main_denominator", 10);
 
    /* make sure that we can load config files with corrupted values */
-   if (m_mulDiv == true and pow(2, m_nrRatios) > m_maxMainDenominator)
+   if (m_mulDiv == true && pow(2, m_nrRatios) > m_maxMainDenominator)
    {
       m_nrRatios = 2;
       m_maxMainDenominator = 10;