When I try to patch ARMA 2 I get this error no matter where I download the patch from:
Please be patient. This update may appear to take a long time to complete. It is updating and installing very large data.
ArmA 2: Updating version 1.01 to version 1.03...
Update 1.01-1.02\ADDONS\AIR2.PBO.UPD cannot be applied, error xdelta3 returned error code: 1
Some error occurred during patch installation.
Patch file is probably dammaged. You may need to download it again.
Error in file ADDONS\air2.pbo, phase 1.
Is there any official say on what causes this or any fix for it?