That is very odd indeed. My official release is arriving today but I have IL-2 on the RC on another machine and it was working very well. I didn't do a fresh install but just copied my folder over and all was good to go. This was on the 64bit version. Once I have time to install the official release on my gaming computer I'll let you know how it goes. It won't be a fresh install either as I have all my games on a separate HD so I won't have to reinstall them, at least most of them that don't require registry entries.

Hope you get it sorted out soon!
_________________________
Avatar
Asus P8Z68 Deluxe, i7 2700k @4.7GHz, EVGA GTX570HD 285.62s, 1x120gb SSD, 2x150gb WD Raptors, 2x200gb SATA, 16gb G.Skill DDR3 2130, 1000W PS, HP DVD-RW, Onboard sound, 32" Sony Bravia XBR, Win7 Pro 64bit, Tai Chi watercooled case