Since last night I have:
1. Uninstalled the game and used the securom removal tool
2. Upgraded the firmware of my DVD drive
3. Done a cold boot and the DVD drive was picked up with the new firmware
4. Reinstalled the game
5. Same thing happens....
I have sent a analysis log file to Securom but I don't hold out hope as Securom seem as poor at writing software as BIS do! For one the analysis file tries to write the log to the root of C: which since Vista you haven't been able to do unless you are an admin. As the file wasn't appearing I had to right click on the Arma2.exe and run as an administrator just so the securom survey tool could write out the log file OK!
It's bad enough how many bugs are in the actual game, but having bugs launching it too makes me laugh.