If you have a shortcut on your desktop you can do the following:
Right-click on the FM shortcut.
Choose "Properties" from the pop-up menu.
In the "Target" field, add the --reset_preferences command line option after "fm.exe", so it should look like this:
"C:\Program Files\Sports Interactive\Football Manager 2009\fm.exe" --reset_preferences
Press OK and then try to run the game as normal, using the shortcut.
You'll want to remove the command after you run the game, as otherwise it will continue to reset your preferences every time you launch.
If you don't have a shortcut you can make one and then perform the instructions on the shortcut you've made.
If you purchased and installed the game through Steam you should be able to find the fm.exe in the following directory:
C:/Program Files/Steam/SteamApps/Common/Football Manager 2009/
If you purchased and installed the game from a boxed DVD copy you should be able to find the fm.exe in the following directory:
C:/Program Files/Sports Interactive/Football Manager 2009/
this is good.There is also a cache folder that might need clearing out, it's in your Application Data folder, depending on what version of windows you are using.
For me (windows 7) it's in C:\Users\My Username\AppData\Roaming\Sports Interactive
On windows XP I think it's something like C:\Documents and Settings\Your Username\Application Data\Sports Interactive
Might be worth deleting that folder too, though back it up first - to do that I normally just rename the folder "Sports Interactive.old"
try this it should help