[Ruahrc]

I have a PB and I have that "ignore accidental trackpad input" checkbox selected. However, sometimes when I am typing (for example replying to posts here in the forums) I will accidentally tap the trackpad and the cursor will move to where the mouse pointer is, messing up my typing. (Note: I do have the option checked where I can tap the trackpad to click) I thought this ignore input checkbox prevented this from happening? But apparently it does nothing.

I also do not have the "click-lock" feature enabled, but when I drag things I select an icon with one tap, then initiate the drag by a second, long tap, and then I can drag the icon around as I please (even lifting my finger off the pad and resuming the drag again) until I tap a third time, to "drop" the icon. I thought this described behavior was what happened if click-lock was enabled, not disabled?

Any ideas?

Ruahrc

[OptimusG4]

I am having the exact same issue with my iBook. All of a sudden it does not want to work. I've repaired permissions to no end, tried creating another user account and still nothing.

[Basilisk]

The "Ignore accidental trackpad input" switch _is_ working, its just not able to filter the kinds of contacts you are creating. When you set that switch the trackpad driver looks for keystrokes and ignores trackpad input for a moment after each key. If you have a newer PowerBook (17" Al and newer revision 12"/15" Al) the switch also activates additional filtering in the trackpad hardware which tries to ignore two-finger contacts, heel of hand on the corner of the pad and other things.

Despite all this, the filter can't perfectly discriminate all types of input. There's simply not much difference between certain kinds of accidental contact and real, intentional contact for tapping and mouse movement. Apparently your accidental taps fall into this category.


As for the drag-lock issue, this is a common misunderstanding. When using tap-click (without lock) releasing the pad does not imemdiately drop the item. If it did you would not be able to lift and reposition your finger when the finger reached the pad edge and you wanted to go further. Instead the driver waits for a moment (750ms). If you don't continue the drag the driver then releases the click. Tapping ends the drag immediately.

When drag-lock is engaged the driver never ends the drag, no matter how long it has been since the last contact. Tapping is always required.

Alex

[The Godfather]

I have the same problem as the first poster. I have had "Acidental Trackpad Input" since I got my iBook in April 2004. My previous laptop was a Compaq, and I already was used to click and drag in the middle of the trackpad. I had no accidents then, because the trackpad was inset in the palmrest. Good (or fortunate) design in the Compaq Armada M300.