QWebView keeps crashing in maemo qt4.5.3

[ibrahim]

greetings;

I am having a very strange problem with the QWebView Component. It keeps 
crashing when it loads about 39% of the web page!!
I created a dialog that contains a webView instance, and loaded a page 
just like the Qt Documentation says :
ui->webView->load(QUrl(MY_URL));
nothing more !!! i didn't even connect to any of its signals.

When running my application on the phone , it simply crashes (it works 
perfectly fine in the desktop ). By accident I tried to run it on the 
phone as root .... It worked fine with no crashes!!!

What root user has got more than a normal user (besides higher 
permission) ??? Does the permission thing have something to do with my 
issue??
I forgot to say that i made my application a debian package - in order 
to run it on the phone - and used the maemo-optify 0.1 application to 
generate maemo-friendly debian package. "So, the path to my executable 
is now: /opt/maemo/usr/bin/" , but i don't seem to see somthing wrong 
with permissions in that folder. Should I enable write permissions to 
that folder to others(non-roots) ? Does webkit write any sort of 
temporary files to the directory/any direcotry and when it fails it 
crashes my application??

my phone's libqt4 version -as said in dpkg -l libqt4*  :

Desired=Unknown/Install/Remove/Purge/Hold
| 
Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: 
uppercase=bad)
||/ Name                                   
Version                                Description
+++-======================================-======================================-============================================================================================
ii  libqt4-core                            
4.5.3~git20090723-0maemo4+0m5          Qt 4 core module
ii  libqt4-dbus                            
4.5.3~git20090723-0maemo4+0m5          Qt 4 D-Bus module
un  libqt4-dev                             
<none>                                 (no description available)
ii  libqt4-gui                             
4.5.3~git20090723-0maemo4.2            Qt 4 GUI module
ii  libqt4-network                         
4.5.3~git20090723-0maemo4.2            Qt 4 network module
ii  libqt4-opengl                          
4.5.3~git20090723-0maemo4.2            Qt 4 OpenGL module
ii  libqt4-phonon                          
4.5.3~git20090723-0maemo4.2            Qt 4 Phonon Libraries
ii  libqt4-sql                             
4.5.3~git20090723-0maemo4+0m5          Qt 4 SQL module
ii  libqt4-sql-sqlite                      
4.5.3~git20090723-0maemo4+0m5          Qt 4 SQLite plugin
ii  libqt4-webkit                          
4.5.3~git20090723-0maemo4.2            Qt 4 WebKit module
ii  libqt4-xml                             
4.5.3~git20090723-0maemo4+0m5          Qt 4 XML module

which i find pretty strange (mixed versions: 
4.5.3~git20090723-0maemo4.2  and 4.5.3~git20090723-0maemo4+0m5  )
can it be the reason? (the new packages -maemo4.2 - were installed 
automatically when installing the qt-webkit component)