Jumping Cursor

You're probably resting your hand on the trackpad. It's not disabled even with a mouse.

panda88 wrote:
Not touching anything the cursor moves. And while I'm on a website the page changes. Could this be a virus?

There are no viruses on Macs. 🙂

I still think you're touching the pad, but it could be anything from a corrupted mouse driver to an old bad mouse to something we haven't diagnosed.

Have the same issue - cursor movement random with no device input or touch
occurs in safe mode
occurs after cleaning the trackpad

a restart and usb device disconnect seems to stop the moving/jumping cursor

can anyone reproduce - a jumping or random moving cursor by placing a fan near the macbook and blowing air over the trackpad?

OSX 10.6.4
macbook pro i7 15

It's unlikely a repair
finding and identifying variables involved in random cursor movement - more productive

macbook pro i7 15 - OSX 10.6.4

How about trying this for random cursor movement
on Macbook Pro i7 OSX 10.6.4

1.
reset SMC
shut down
plug in power
hold down keys (left) Shift + control + option + power button
release all
restart



2.
restart then hold keys
Command & Option + P+R reset PRAM & NVRAM

this looks to be a likely solution
(fan + wind + touch pad thing not)

Same issue.

I also have a fan that I use to blow air over the keyboard to keep it cool and get the jumping cursor. But I get the jumping cursor even when I turn the fan off.

Still now solutions? I have a Kensington Expert trackball (K64325 model) with a MacBook Pro.

This is driving me crazy.

Still no one has discovered a solution?

OK
I believe i discovered at least one cause for the jumping random cursor movement.
seems to be a software conflict (in my case)

on a macbook pro 15 i7 OSX 6.4
also use Kensignton trackball & WACOM tablet - NOT THE Cause of cursor movement
nor blowing fan

is bluetooth + software conflict

a restart in SAFE mode ( hold shift key down + restart) should be able to observe if a software conflict - no random cursor movement - leave bluetooth on -

Bluetooth + "WITCH" software (if using the WITCH switcher disable in preference pane)
Solved the cursor problem for me

I have had this similar jumping cursor issue.

Issue occurrs when using either the mouse or the trackpad for pointing or selecting items on screen (ie same behaviour: the cursor either temporarily freezes or jumps to a different part of the screen, making accurate point and selection a nightmare).

A few users mentioned devices (ie mouse) should be disconnected and reconnected, so I tested the following:
1. my external 24" monitor connected but POWERED OFF - cursor issue
2. my external 24" monitor connected but POWERED ON - no issue
3. disconnect the powered OFF monitor - no issue

As I only use the external monitor occassionally it also explains why the cursor issue has been intermittent. For now the work around is obvious but something evidently is not right with the external monitor connection/port.

This only started happening in the last 2-3 weeks. Will update if any changes noted.

Message was edited by: PWRUIZ

I've just started having the same issue. I finally figured out that it is due to pressure on the MacBook case in the center-front and left sides of the trackpad. If I rest my hand heavily on that side while typing it messes with the trackpad's various swipes and gestures, selects random things, switches pages or scrolls, etc. Or if my angle is from below e.g. a table that is higher than my wrists.

I am able to recreate/confirm this by pushing lightly on the case at those points and getting the same undesirable cursor behavior. There's just enough flex in the case. Never had this problem before on previous laptops.

Any ideas other than finding the perfect position every time I am using the machine? Heading into a Genius Bar ASAP.