Laptop cursor -- it IS jumping to the cursor position...What's the cause?

[AndrewR]

UPDATE: I have been carefully watching it, and it is in fact jumping to the mouse cursor position. There doesn't seem to be a correlation with pressure on the keyboard or palm rest, however. It just jumped on me, and I'm not even touching the palm rest at all or the keyboard except for the keys to type. Any help??


I just had nearly everything replaced on my laptop except the HDD, mobo, and battery, but I'm still having issues with the cursor jumping around a little bit. I was told by a tech that it's the palm rest and keyboard, but those were just replaced today with little difference. It IS better, but the problem is still there.

I'm not putting excessive weight on the keyboard or palm rest (actually, almost none). I'm wondering if it's a heat problem. Could excess heat cause the cursor to bounce (there, just did it again!)? I did hear the onboard fan working earlier, but the system isn't inordinately hot.

Any ideas?

 

[fbrdphreak]

Does it bounce or does it more kind of slowly glide in one direction?

The pointing sticks do this sometime, happens on Thinkpads too. I'm told that (at least on Thinkpads) this happens because the pointing stick is re-aligning itself or something. Try disabling the pointing stick and see if that helps

 

[AndrewR]

No, not a glide -- it's an instantaneous jump. I'll try disabling the stick, though. Good idea.

 

[AndrewR]

Just confirmed that it does NOT jump to the position of the cursor. Ok, this time it seemed to. I guess the best description would be "erratic".

Something with the motherboard? This laptop was dropped at least once (not by me).