Pointer coordinate display is slow (trivial)

This is more a curiosity than an issue since it's so trivial, but I'm wondering if anyone else has seen it.

I'm running DS V1R2.1 on 64-bit Windows 7 Home Ultimate. When I move the pointer around, the X/Y(/Z) values displayed next to the ETrack button at the bottom of the screen don't update unless I stop or move extremely slowly. My laptop is running the same version, but on 32-bit Windows 7 Professional, and it updates as quickly as I can move the mouse. I seem to recall at some point in the past it also updated quickly on my PC, but I don't recall when it slowed down. When I installed DS on my laptop, I copied my profile over from my PC, so it has the exact same DS config.

Once again - Certainly not a showstopper (duh :-), but I'm just curious what might be causing it.

Thanks.