Boring High Pitch Noise for my T43

[wleng]

Hi, everyone:

I have justs bought a T43 a month ago. When I plug in the AC adapter and use it, I can listen to a low-level high pitch noise when I move windows or use scroll bar. If I unplug the AC adapter and use the battery, the noise disappears. It's not aloud but I can feel it when in a quiet environment. A little boring!

Does anyone can help me about this question? Thanks a lot!

[Eugene]

My friends' and My T43 has this problem too.

[hoya]

yep - several of the T43's I've owned have had this problem. the source of the sound seems to be under the left palm rest, but it's hard to tell.

I started a thread about this problem here:
http://forum.thinkpads.com/viewtopic.ph ... highlight=

[wleng]

yeah, we can't find where the noise come from. May be this is something we'll just have to live with. But I really want IBM can fix this problem. wu......