[CentOS] Possible to change mouse sensitivity?

Ever since I replaced the mouse that came with one of my computers with a 
Logitech MX1000, I have noticed that I have difficulty with accurately making 
small movements with the pointer in X because it moves so fast. I have played 
around with the mouse preferences, and using 'xset m', but neither one gives me 
what I want. When I do 'xset m 1/4 1' I get about what I consider to be a 
normal/usable speed for the mouse when I need to do precise pointing. Of course, 
that setting eliminates the possibility of getting the pointer across the screen 
with a flick of the wrist.

Most of the articles I have found related to this problem have been about having 
entries in the XFree86 or xorg config file for two different mouse device names 
that are actually the same device, and I don't.

I have also seen references to psmouse_resolution and psmouse_rate but when I 
give either of these as a parameter to the kernel, it says they are obsolete and 
ignores them.

My understanding is this mouse is not well supported in xorg until 6.8.3, but 
I'm still wondering if there is some way to get the kernel to slow it down. Does 
anybody know of a way to do that, so I can get back the mouse acceleration on 
fast movements?

Oh, by the way, I should probably mention this mouse is on a KVM. I don't know 
if that could be interfering with the detection algorithm.

Thanks for your help.
Linus