[lil jo]

hi all, the screensaver clock showed 00.00 this moring and when i unlocked the clock was frozen at11.28pm, i went into clock settings and it showed the right time, this seemed to reset the screen clock but it then would not move on till i switched off the phone for a short while, all seems to working ok now , does anyone have any ideas what could cause this and could it be indicative of something more serious?, tia joanne, btw i am on virgin payg.