My brother and I split our PS3 and my friend has one up at school. So I gave my little brother the PS3 thinking I could just copy my save file, bring fallout to school and continue playing on his PS3.

Only problem is, THE GAME DOESN'T ALLOW ME TO SAVE.

I can load my save file. When I start a new game everything works perfectly. I simply can't save my current game. I am absolutely livid. I've played through about 40 hours and have meticulously built my character. I do not have a lot of free time ( I play maybe 2 video games a year) so this represents months of progress. I will NOT start from scratch.

Somebody please help.