Well I tried installing the game from the HD, ie copying files over from cd, and couldnt get past CRC errors. I then installed again from cd, and then applied patch.
This came up with one error (see message below) right at the end but I ignored it and it seems to have completed the update. What a total carry on.
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 1.02...
Error found in file addons\ui.pbo (2fe3d889!=02891d28)
ArmA 2 patch 1.02 has been applied successfully.
I have a hard time believing its a hardware issue. Firstly the ram is pretty top grade stuff, the HD is relatively new, and the errors are inconsistent and (correct me if im wrong) relate to installation files, not hardware issues, but I stand to be corrected.
What tests would you suggest I run, to check the integrity of my memory and hard drive, just so I can definetely rule that out?
Gonna go check the game now, only taken like 6 hours to bleedin install the game.