I'm trying to activate Discovery Mod 4.85 but the Freelancer mod manager (1.3) fails to do so. Please note that I havn't edited any game or mod files, the following is the error message which shows up in the log:
Error: problem activating 'Discovery Mod v4.85'
Error: SHCopyFile failed ('C:\Program Files (x86)\Microsoft Games\Freelancer\EXE\data\solar\dockable\docking_ringx2_lod.sur.flmmbak' to 'C:\Program Files (x86)\Microsoft Games\Freelancer\EXE\data\solar\dockable\docking_ringx2_lod_.sur')
Freelancer is installed and I am on the only account with admin privileges. I'm using Windows 7 64 bit.