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My Track ID as stopped working on my x10i phone, all it says when you click on it is " The Track ID ( process com.sonyecricsson.trackid.client.rachael) has stopped unexpectedly. please try again.
What can i do to get it working again ?
I would recommend you update your software via our Update Service application or PC Companion.
www.sonyericsson.com/update is where you can get this application. Please make sure to backup your data before starting 
backup everything but settings
then go to
settings
privacy
then factory data reset