F1 2011 Save game help needed

[Kartik Sri Harsha]

I was playing for MClaren by editing the database and it went smoothly until SPA once i entered spa the save was not working and i cannot progress in my career
Here are the files i changed
1.MClaren team for Team selection
2. Used Improved tires version
i was already using old flow.bin i guess it was 1.0
so i need help to enable auto save

 

[Kartik Sri Harsha]

I've uninstalled and reinstalled the game and now with no mods but contuning my Career with Mclaren
I've also Updated the game with 1.2 patch and played Spa for just a 3 lap race to check whether the save was working or not
And it worked and i saved the game and exited then made a Back up for the save game so that i don't want to play the Spa again
I restarted the game to continue with Monza but the save disabled again i don't understand why this things are Happening with this game
Did i done any thing wrong???

 

[Kartik Sri Harsha]

Please guys some one tell me how to fix this thing