I tried to restart Konqueror from console after that crash.

[vad@VPlessky vad]$ konqueror
Loading required GL library /usr/X11R6/lib/libGL.so.1.3.401
kdecore (KLocale): WARNING: found no definition of PluralForm for en_GB
kdecore (KLocale): WARNING: found no definition of PluralForm for en_GB
kio (KTrader): KServiceTypeProfile::offers( Browser/View, )
kio (KTrader): No profile, using KServiceType::offers, result: 22 offers
libkonq: ## loaded: 68 entries.
konqueror: KonqMainWindow::enableAllActions false
kparts: MainWindow::createGUI for 0L
libkonq: KBookmarkManager::toolbar begin
libkonq: KBookmarkManager::toolbar trying cache
konqueror: KonqMainWindow::openURL : url = 'file:/home/vad'  serviceType='' 
view=(nil)
konqueror: KonqMainWindow::setLocationBarURL: url = file:/home/vad
konqueror: trying openView for file:/home/vad (servicetype inode/directory)
konqueror: serviceName= m_sViewModeForDirectory=
konqueror: KonqViewManager::splitView(ServiceType)
konqueror: KonqViewManager::split
konqueror: KonqViewManager::createView
konqueror: Trying to create view for "inode/directory"
kio (KTrader): KServiceTypeProfile::offers( inode/directory,Application )
kio (KTrader): No profile, using KServiceType::offers, result: 10 offers
kio (KTrader): KServiceTypeProfile::offers( 
inode/directory,KParts/ReadOnlyPart )
kio (KTrader): No profile, using KServiceType::offers, result: 10 offers
konqueror: konq_iconview : X-KDE-BrowserView-AllowAsDefault is valid : true
konqueror: Created main container [KonqFrameContainer pointer (0x81e10d0) to 
unnamed widget, geometry=100x30+0+0]
konqueror: KonqView::switchView
konqueror: +KonqKfmIconView
libkonq: gridXValue: 82sz=32
libkonq: gridXValue: 82sz=32
kparts: found Plugin : 
/opt/kde3/share/apps/konqiconview/kpartplugins/kshellcmdplugin.rc !
kio (KTrader): KServiceTypeProfile::offers( ThumbCreator, )
kio (KTrader): No profile, using KServiceType::offers, result: 8 offers
kio (KDirLister): +KDirLister
kio (KDirListerCache): +KDirListerCache

[ at this moment, there is no Konqueror window opened, and nothing happens, 
Konq startup process stopped ]
Tried to restart Konq twice from console, same effect.

-- 

Vadim Plessky
http://kde2.newmail.ru  (English)
33 Window Decorations and 6 Widget Styles for KDE
http://kde2.newmail.ru/kde_themes.html
KDE mini-Themes
http://kde2.newmail.ru/themes/