Just wanted to chip in to say I've noticed this happen an awful lot on mine too.
Doesn't happen if I use the screen soft-scroll; Just only if I use the D-pad.

Heavily doubt it's screen-protector related 'tho (Coming from 1src.com, I've read enough screen-protector problem posts to know this doesn't fit the profile )

I suspect the OS is missing the key-up event when you release the pad, because it seems to happen most often under high-load situations, and also if you hold it down for a few seconds so that lots of screen updates are happening due to the scrolling.

MicroB is a bloody terrible app - The single biggest hog on the N800, so if my theory is correct it's no surprise that that is where the problem shows up most often.


The soft-keyboard problem mentioned in the bug report is unrelated - I suspect it's partly due to something like the coders not putting in a 'bounce' timer for the digitizer (We learned this in 1st year mechatronics; Even with an industrial microswitch, you need to put a small delay in after each 'click' before reading the input again, otherwise you get multiple clicks from spring bounce. Calibrating the bounce can be a bit trial and error 'tho.)
The fact that the digitizer is very hard, unlike PPC and PalmOS digitizers (Where the plastic 'flex' of the digitizer tends to absorb the bounce) exacerbates the problem.

The iPhopod digitizers are hard too, but don't suffer from this problem because they are capacitive (Like a laptop trackpad) and not pressure sensitive (But that means you can't use a plastic stylus or fingernail with them...)


EDIT: Well well... I've just duplicated one of the other scrolling weirdnesses.
In the File manager, I was just scrolling through a large list of MP3s. During the scroll, the cpu hit 100% (At least according to the LoadApplet meter), and then it just continued scrolling!
If I tapped the up arrow, it'd reverse direction and 'auto-scroll' upward. Click the down arrow, and it 'auto-scrolls' down again. Tapping on the scroll-bar stops it.
Significantly, it doesn't do it in 'list view' mode, only in 'thumbnail' mode (Which, annoyingly, is the only way to see the full name of a lot of the files here...)
Is this actually programmed behaviour or a bug??