E6410 touchpad freezing upon resume from suspend

I've got an E6410 running Win7 Professional 64, and whenever the system resumes from suspend the touchpad and point stick are non-functional for about 15-20 seconds. The keyboard works properly immediately upon resume, but the pointing devices don't. I've installed the latest drivers from Dell, but the issue remains. Any ideas?

 

E6400 does the same. It seems like they are USB devices and windows has to enumerate them each time it starts, including from resume/suspend/sleep. It seems like it is normal for this line of notebooks.