Do you have a way to accurately measure relative humidity?<br><br>I saw pretty severe trackpad issues on one of my XO's on a single day and haven't seen a re-occurrence yet.<br>At the time, it looked clearly related to static fields.<br>
<br>On the other hand, I have seen (and fixed) a very similar behavior on a NintendoDS touchpad which was caused by dust or sand becoming trapped under the frame along one edge.<br><br><br>Just a theory (I have no data to indicate this works) but when you see the touchpad problem on an XO could you try this and report back with success/failure/experiences:<br>
<br>On an XO showing jumpy trackpad problems:<br><ol><li>Raise the screen to full vertical / perpendicular.</li><li>Rotate the screen 1/8 turn clockwise (reverse this for left-handers)</li><li>With the right hand palm facing up, reach under the screen and put a finger on the metal mounting bracket or screw of the swivel hinge.</li>
<li>With the finger still in contact with that (essentially a chassis ground), lightly brush the trackpad with a finger of the other hand to drain stray static charges into the chassis.</li><li>Re-calibrate afterwards, if necessary.</li>
</ol><br>If you have an available earth ground, discharging to that as well might make an interesting variation on the test.<br> <br><br><br><br><br><br><div class="gmail_quote">On Sun, Apr 27, 2008 at 7:50 AM, Bryan Berry <<a href="mailto:bryan.berry@gmail.com">bryan.berry@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Day 3 of the pilots at Bishwamitra and Bashuki and couple of issues have<br>
come up<br>
<br>
1. We are having a lot of trouble w/ jumpy cursors. You know where the<br>
touchpad behaves erratically. Is there an easy fix to this problem?<br>
<br>
we are using build 703, MP machines, and firmware Q2d14. We have the<br>
kids hold down the 4 corner buttons as recommended in the XO user guide<br>
but that doesn't seem to consistently fix the problem.<br>
<br>
Dust is an issue at the schools but that can't explain the high rate of<br>
jumpy cursors. Please assist<br>
<br>
Suggestions?<br>
<br>
2. For future reference: In general the kids and teachers find it quite<br>
confusing when they move the cursor to the corners of the screen and the<br>
Sugar frame pops up. The kids have learned the top row keys very quickly<br>
- faster than I thought - and they find the frame popping up quite<br>
confusing. They have learned to use the frame button already.<br>
<br>
pictures to come and a full write-up, I promise!<br>
<br>
Bryan W. Berry<br>
Systems Engineer<br>
OLE Nepal, <a href="http://www.olenepal.org" target="_blank">http://www.olenepal.org</a><br>
<br>
<br>
<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Steve Holton<br><a href="mailto:sph0lt0n@gmail.com">sph0lt0n@gmail.com</a>