Can only give generalized answers because you only gave generalized description. For example, we do not know what your sound device is, nor the kind of driver in use by you, ASIO? MME? and we don't know what Operating System you are using nor the computer cpu, ram, hard drive size, etc.

*Check your Sound Device Settings, for example, any sound device or sound card that can be set to a fixed bitrate other than rhe one set inside PT may be having to reset to match.

*You also may just have gotten the sound device drivers corrupted, it happens. The cure for that is a reinstall of sound device drivers.

*A fragmented c: hard drive can also cause this, defrag the drive regardless of what Windows reports, as if the stored sound device drivers are the only file that is fragmented, that is all it takes.


--Mac