Installed application doesn't show up
 

Hi girls and guys ...

a few days ago I removed the power-kernel and had to (re)flash my n900 because some problems came up.
Yesterday I wanted to install some tools like catorise and currency exchange widget but catorise isn't working and the widget is crashing down after I add it to the desktop ... I also can't install the software from the ovi store cause with the message "the noikia suite isn't running" ... while it's running.
Maybe somebody can help me.