Some people have had success deleting and then reinstalilng the driver for the touchpad. The manufacturer of many touchpad is synaptics but I don't know which one yours is.
Note that many touchpads end up having the cursor jump when you brush it with your palms when typing and that is why the newer HP/Compaq models have a button that turns the touchpad on and off. Also, you should be able to adjust the sensitivity of the touchpad.
But you say the problem recurred after awhile so I would try to find an updated driver or reintstall the driver either at the Dell wegsite for you model or at the manufacturer website for the touchpad device. Perhaps you could even get someone to help you at the touchpad manufacturer.
Finally, you should have a USB port on your notebook although you may not have USB 2.0 (you may have the slower 1.1) --at any rate you can plug in a nice optical wireless mouse now by Microsoft or Logitech on the $20-$30 range and not have to deal with this touchpad issue hopefully.
If anyone can help me I will think the world of you!
Well, here it goes...in 2001 I purchased a Dell Inspiron 8000, P3, 256RAM, 10gig HD. It worked fine for about a year and then from time to time the mouse pointer would intermittently go nuts. The mouse pointer will usually find its way to the upper-right corner of the screen by itself. When I try to move the pointer back to the center of the screen it initially will move but will return to the upper corner as soon as I let go of the mouse or the touchpad. Sometimes it will move very fast and sometimes it will move slower.
Now, this problem has persisted since its' inception and there seems to be nothing I can do about it.
I have spent many long hours on hold with Dell tech support trying to get someone who would fix my problem. The numerous times that I was able to speak with someone they would run me through all of the various checks to see if they could systematically figure it out. All unsuccessful!
I had a 3 year warranty for onsite parts and labor and used it extensively during this process.
After, going through all of the system checks with tech support like flashing Bios, reinstalling OS, reinstalling drivers for both mouse and touchpad...the problem still wasn't fixed. So, they sent out, the first time, onsite service rep to replace my touchpad. This did not fix the problem. However, since the problem is speratic and doesn't occur at any set time...I was unable to see if the new touchpad was the solution right away. I knew it wasn't when the mouse pointer started moving on its' own again. So I called dell yet again, and then they thought well, maybe it is the keypad/keyboard. So they sent another specialist out to replace my keyboard. The computer seemed fine for a while but the problem came again. After that they decided that it was time for my laptop to be shipped to their service center so they could do a more further diagnostic inquiry. I received the computer back a couple weeks later and assumed the problem was fixed. There was no confirmation letter explaining what they did to fix the problem. I assumed that it was fixed since the machine was sent back to me. Once again the laptop worked fine for a while but yet once again the problem came!
This was all over the past four years. Last year I tried yet again to get Dell to fix my problem with the mouse pointer and I was extremely upset when they told me that they could not do anything for me because my warranty had expired!
So here I am today...stuck with this computer that has been malfunctioning basically since I bought it and they are telling me there is nothing they can do for me. My frustration is extreme!
If anyone can help me figure out what to do to resolve the problem of the mouse pointer I would be so grateful!
Also, if anyone knows what I could do about Dell not ever fixing my computer during warranty and then telling me "tough luck" after my warranty expired, that would be nice too!
Please Help!

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