docweathers
Extraordinary Member
- Joined
- Feb 23, 2010
- Messages
- 65
- Thread Author
- #1
Regularly I find my cursor jumping around the screen though I am not moving it with the touchpad. If I wait three or four seconds it stops jumping. Then I can move it with precise control, until another episode sets in. I've never figure out how to systematically cause this phenomenon.
I am not clear what triggers this but it seems to be related to opening a new window within IE or Firefox. But it does not happen when I switch tabs. I have watched the CPU usage while frantically clicking window to window and program to program. There does not seem to be any correlation between the percent of CPU usage and the cursor jumping. My fantasy is that it happens when something has to be swapped to the hard drive and there aren't enough processor ticks to do both that and control the cursor. I can't verify this since the computer does not have a hard drive activity light but I think I can hear subtle sounds of the hard drive accessing when this is going on.
I'm using a Dell XPS 15 Z laptop with 6 GB of RAM and 4 - 2.53 GHz processors. I've never seen more than two thirds of the RAM being used when I look at performance in the Windows task manager.
I'd sure like to know how to fix it.
Thanks
Larry
I am not clear what triggers this but it seems to be related to opening a new window within IE or Firefox. But it does not happen when I switch tabs. I have watched the CPU usage while frantically clicking window to window and program to program. There does not seem to be any correlation between the percent of CPU usage and the cursor jumping. My fantasy is that it happens when something has to be swapped to the hard drive and there aren't enough processor ticks to do both that and control the cursor. I can't verify this since the computer does not have a hard drive activity light but I think I can hear subtle sounds of the hard drive accessing when this is going on.
I'm using a Dell XPS 15 Z laptop with 6 GB of RAM and 4 - 2.53 GHz processors. I've never seen more than two thirds of the RAM being used when I look at performance in the Windows task manager.
I'd sure like to know how to fix it.
Thanks
Larry