@pitiusillo
yes just close it and restart you phone with your keyboard open!

@leetut
looks like you have your phone overclocked. You have the same case as me.
http://talk.maemo.org/showthread.php?t=66459&page=48 (5th post)
follow each step carefully. your memory card wont be formatted.
after all those steps, dont restart the phone. go to the first page and follow For people who have lost their overclock in maemo after installing nitdroid.
good luck. nothing will be deleted. Make sure you backup just in case