Recently a few of the people that used my original Dirt 3 fix pointed out that they can't continue beyond Season 1 and into Season 2.
I found two reasons for this issue...
1. You don't have a podium finish in the Season 1 finale.
In this case replay the event.
2. It is some sort of an anti-crack protection.
This technique was initiated by Rocksteady and implemented in that Batman: Arkham Asylum game in which players that haven't legally bought the title can't continue past certain points during the gameplay (although all had some potential workarounds ;P). I guess Codemasters are trying to do the same but you can evade this too.
> Goto C:\Program Files\Codemasters\Dirt 3\database or a variant path.
> Find a file name database_restrictions.xml (This file basically governs the locked stuff in the game and when it is to be unlocked)
> Move it to a folder other than Codemasters.
> Start the game with my original fix.
> After you have loaded your save game the game will ask you that do you want to unlock all the cars and stuff. Select No. (Selecting Yes will lead to complications later on, including crashes, as some of the stuff that has been unlocked is DLC that isn't actually present in the game installation!!)
> Continue your tour!
I hope this helps. :)
IF YOU WANT US TO WORK ON ERRORS IN OTHER GAMES, YOU CAN DO SO BY DROPPING A COMMENT BELOW!