Sluggish USB mouse in -CURRENT

I have a new Logitech LX700 cordless USB keyboard/mouse combo.  The keyboard 
is working fine in either USB or PS/2, but the mouse is giving me issues.  
When used on the USB port, regardless of if I am in X using the mouse 
directly, or using moused, the mouse is very sluggish to respond.  That is, 
it does not move smoothly, but rather is jerky and always feels behind where 
I think it should be.  Also, clicking is difficult, I usually have to hold 
the button an extremely long time.  If I connect to the PS/2 port the pointer 
responds quickly, but it is detected as only a generic PS/2 mouse, and has no 
wheel support.  I am running -current from yesterday.  Also, I am using an 
older USB mouse at home on 5-STABLE (and 4-STABLE before that) without any 
such issues. Any thoughts?
-- 
Jonathan Fosburgh
AIX and Storage Administrator
UT MD Anderson Cancer Center
Houston, TX