I am using LG P500 Optimus one, recently upgraded to Gingerbread. Sometimes when i read any messages and delete the same, Messaging service crashes with a Force Close error, how to rectify this problem.
I am not sure if you as end-user could really fix the underlying problem. That's why it's always a good idea to send those bug reports that are (sometimes) shown after a force close occurs.
But what you could try is to delete the application data, but this will eventually result in losing all your messages. Go to the Preferences -> Manage Applications -> Choose the Application -> Delete application data