I have a Dell Inspiron 9400 Laptop. I bought a wired USB mouse to use instead of the pad. The computer does not recognize this mouse, only the Dell pad? I then bought a wireless USB mouse and keyboard. The Dell recognizes the keyboard, but not the mouse. When I first plugged in the little USB Xmitter I got the window that says "new device recognized". At that point the mouse did work, then when I got the next window saying "device ready for use" the mouse stopped working while the keyboard did still work. When I look on the Control Panel for mice Hardware, it only sees the Dell pad. I've also tried 2 other wired USB mice to no avail. I've tested all the USB connectors with other devies and they all work.
Any thoughts?