Remember, my comment was only yo save you downloading the game and patch again, not to actually address your issue.
As spooky said a clean install may very well help.
But also have you made sure that your sound drivers are up to date? Sound drivers are easily overlooked, be sure you have the latest release.
Im angry i bought such bugged game...
Since your issue is not a community wide issue, i hardly think it is due to you buying a bugged game. It is more likely a specific issue with the game and your PC.
If you still fail to get any joy email suppport@stardock.com, they will be able to help you more.