[junkgear]

Definitely a good suggestion to try the online bounce and see if that helps.

Also, when you say nothing has changed, are you also taking into account windows updates and driver updates? If your system is on the internet and Windows updates have been installed, there is a good chance that something is no longer compatible in your system.

If this is the case, make sure you have updated your hardware drivers, including graphics and audio. Then make sure you have the latest version of the plugins you are using.