Hi Henry A. Arrington,
Please try updating the Touchpad drivers. Once done, try adjusting the Touch Sensitivity and TouchCheck settings in the TouchPad Settings section of the Dell Touchpad Properties.
You may watch the video on How to disable the Touchpad.
Here is the manual for Inspiron 1545 system.
Hope this helps.
Thanks and Regards,
Appu S
I bought a refurb from PCRetro and no manual. The typing keeps jumping all over my email compositions.
Thanks.

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