I keep getting random lockups for no reasons,

*save game size 4038kb and about 12 hours games play.
*only quest i got/active is the main quest - the very begining quest: to find that person in riverwood.
*discovered 112 locations.

this is a new character made after downloading 1.8 and i dont have the dlc installed.

i have already deleted/redownload the patch, and installed the game again, tried a differnet ps3 and tried my friend copy of skyrim and end result is the same after a few hours the game locks up.



any1 know whats going on or how to fix this?