Keyboard & track pad have a mind of their own

Question

My G4 ibook 1.33 had developed a problem with characters moving at random, and the trackpad doing what it wants, when it wants. This is confusing to try and describe but I'll try. Bought this ibook in October 2005.
When I scroll through a page, it starts to highlight for no reason.
When moving over a hyperlink, it will click on it without me pressing on the trackpad clicker.
When signing into my e-mail, it will jump from screen name to password in the middle of my typing the screen name. Very erratic.
Example:
The screen name is: [email protected]
password is: mypassword,
What happens is that in the middle of typing the screen name, it will jump down to password, and sometimes actually click on the login button.
It will look like this: Password: johnsm password: [email protected]
This will also happen when I'm writing a paper, or e-mail. Sometimes my e-mail will be sent before I'm finished. It has a mind of it's own.
Does not matter if "Ignore accidental trackpad input" is checked or not. I've been keeping my palms off of the area around the track pad while typing lately, thinking that it might be a sensitivity problem, no change though.
Just had major work done by Apple due to a failing firewire port.: Repair was:
Product serviced by replacing the following: 630-759, PCBA, MLB, 1.33GHZ, Better, Q72b, NT EEET:43.
I also described the problem above to the Apple tech before I sent it out, but it's still exists. He mentioned open firmware problem might be present.
I puchased the ibook in October, 2005
Ran hardware test from original CD, passed, no problems.
Software up to date.

Answer 1

Hi Nyj Shooter,
Have you tried changing your Trackpad preferences? Try going to System Preferences - Keyboard & Mouse - Trackpad. Try changing your settings around a bit. Under Trackpad Gestures, make sure Clicking, Dragging, and Drag Lock are not checked. Also under Trackpad Options, select Ignore Accidental Trackpad Input.
I hope that helps,
Jon