touchpad problems when external HDD is connected??

Question

I have only recieved my Inspiron 640M (e1410) today but I have noticed a problem. When I attach my external hard drive via usb to my laptop the touchpad instantly becomes unusable. The coursor moves all over the screen randomly and left and right clicks also. It only seams to happen when I attach the external hard drive. All my other usb devices work ok without interfearing with the touchpad. I would greatly appreciate any help on this topic. It is very fustrating not being able to access my music and films. One other thing also. I reinstalled Windows and all system drivers are installed except for one. In device manager it is showing a question mark beside a pci device. I have no idea what this is. Does anyone know what it could be??

1d49f54a95134b2 · Answer

PCI Device? That might be the wireless card. Have you installed the notebook system software and chipset drivers first?

herrop · Answer

My wireles is working. What other pci devices could there be?? Sound card mabey.

Mary G · Answer

Chipset drivers and Notebook System Software must be installed first before all other drivers.

herrop · Answer

Thats the first time I heard that. Why does it have to be done that way?? The computer seams to be running ok without this pci device anyway so im not too worryed about it.
My original problem has been sorted out. I replaced the IDE to USB cable and everythings ok now. No mad random cursor movements anymore.

nra582 · Answer

I am having a similar problem with the touchpad.  It's definitly a software issue, not a physical problem with the pad itself.  Other than that I don't know where to begin.  Any ideas?

Rollie_R · Answer

All,

Some of the internal devices will not be correctly identified until the chipset drivers are installed.

The Notebook System Software installs certain updated drivers, like USB that are required before other drivers will install properly.

These two drivers should be installed first, with other drivers (video, audio, etc.) installed afterwards.

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