When I export from Sonar I have recently noticed a barely noticeable squeal-type sound coming from my speakers. If I'm five feet from the speakers I can't hear it.

The sound only occurs during export. The sound still occurs if I change dithering options.

It does not hamper my recording in the slightest. Just curious.

KRK VXT 10 monitors RME soundcard

Hi. Are you using real time audible bounce with Live Input checked? Could something be active (Audio Interface, Vsti etc) feeding your mixdown? 
All the best.

Are you using a wireless mouse?

thanks Zargg & Jonesey:
 
Jonesey: it was my wireless mouse     :)

Glad you figured it out, and hope you have a wired mouse
All the best.

I hear noise when i export gas

I get noise all the time at work from my little pc speakers and tracked it down to the mouse.
 
In the studio, I also use a wireless mouse but never get the noises. Weird eh?