There is only one chipset driver. Did you install it right after installing the notebook system software? If not, try reinstalling the chipset in Safe Mode.  I assume that your touch-pad is sitl working? In that case, open Device Manager and expand that USB list again. Right-click and uninstall all USB entries, starting from the bottom of the list of USB entries. When they're all deleted, reboot normally and Windows should reinstall the USB ports. See if that fixes the problem. Ron
I have a Latitude D630 that I just re-installed Windows on after a malware problem. I began to install the Dell drivers and utilities off of two CDs that came with my computer using the order found at the link below.  When I inserted the first CD it did a hardware scan and shows that a number of drivers are already installed. I went on to install the Dell Notebook System Software as instructed, restarted, but it does not show as being installed. I thought maybe it was a fluke and tried installing other items, but again, none of them showed as being installed.  I can't connect to the Internet on that computer so can't use the Dell site to do a hardware scan and am not sure what the problem is. I have been using this guide for re-installing: [URL]
Driver installation problems after re-installing Windows XP on Latitude D630