[Solved]What about

There are a variety of solutions to this error "Client file corruption detected" ;

-Updating your Video Drivers;

How to Upgrade Drivers for a Video Card | eHow.com

-If applicable to your Operating System, "Run As Administrator".

This should be your last resort;

- Following this tutorial on deleting and reinstalling your Crossfire;

[GAME ERRORS] GUIDE - Performing A Clean Installation Due To Errors - Z8Games

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1) Restart the computer.
2) Remove any hacking utilities you may have used.
3) Uninstall Crossfire the usual way:-

Windows XP > Control Panel > Add/Remove Programs
Windows Vista/Windows 7 > Control Panel > Programs and Features (or Uninstall a Program)


4) Restart the computer.
5) Delete the Crossfire games folder.

Navigate to the installation location, for example:-
My Computer > C:\Program Files>Z8Games >
Right click the ‘Crossfire’ folder and Delete


6) Download, install and run CCleaner.

Select Cleaner > Analyse and then 'Run Cleaner'
Select Registry > Scan for Issues and then 'Fix selected Issues'
Piriform - Download CCleaner, Defraggler, Recuva, Speccy - Millions of users worldwide! (Latest version 2.36.1233)


7) Restart the computer.
8) Disable all anti-virus and spyware/anti-malware programs you have running.

EG: Norton, McAfee, Spybot, Windows Defender


9) Download and Install the latest Crossfire installer.

10) Leaving your anti-virus and malware programs disabled – Test the game.
11) If all goes well, restart the computer and test the game again.