Hi,
I am not SURE of the cause of this problem so I didn't know where to post this. Sorry if its in the wrong section.
I have Windows XP.
My CURSER jumps around the screen when I write emails. Its very annoying. I will be writing then suddenly find my text in a line halfway down the page in the middle of another sentence.
Another problem is that when I watch a video it is very jerky, stopping and starting, even when stored on disk, not when streaming.
Any ideas why this is happening and what I can do about it?
Any suggestions will be appreciated.
Thanks.Cursor jumping happens with emails only?Actually no, it happens all the time.Is this a wireless mouse?

What type of mouse is it? (Optical, laser, ect...)

What type of surface are you using it on?or are you using a laptop / notebook ?I'm using a laptop and don't use a mouse. Its a touchpad. Is this a new issue?

Have you updated the drivers for your touchpad?

Have you made any changes to the computer recently - INSTALLED PROGRAMS, downloaded files, etc?

Is the air intake free and is the fan running? Dirt and dust around the air intake?

Invoke Task Manager (CTRL+ALT+DEL)>Performance, what does it show for CPU utilization? If utilization seems 'high,' go to Processes tab, look in CPU column and see what is using the CPU - ignore a high (+/- 97%) utilization for System Idle Processes.Try external mouse, and see, if same thing happens.Hi drmsucks - yes its new since i recently reformatted all and reinstalled Windows XP Home and all my docs and programmes. Maybe you are right - I need drivers. Not sure how to get them - any advice?
Thanks.First, try what Broni suggested. If you tell us the make and model of your laptop we can show you where to get the drivers.I installed the correct driver and the problem is solved.
Thanks everybody, especially drmsucks.

Glad that you got it fixed!