Help Problem with X8 ( restart )

[Nikoz]

I have S.E x8 with android 2.1-update 1.
Recently i root it. ( 2 days ago )
The mobile makes restarts very often (about 5 times a day).
Anyone knows how can i fix it?

 

[Sam-SonyXperia]

I would have to advise running a software update, however please be aware that whilst this will likely resolve the problem it will also undo the rooting of the phone.