I moved my project from the 64 bit win 7 to my 32 bit win 7 same computer same hardware > sound is fine on the 32 so I moved it back to the win 7 64 bit system and after the move all the browsers now have sound. I am using R260 both systems, can anyone please explain what is causing this issue with a new project not having sound if built or made on the 64 bit windows system. I moved to a 64 bit sys to have better resources and all I have is problems now. The only difference in hardware is the hard drive itself, both systems are on the same computer and use the same hardware, video sound etc drivers are fine . Something is being added on the save for the 32 bit system that makes it work on the 64 bit, what it is ?