Is it a new problem?

What kind of mouse?

Have you tried a different surface?

Have you cleaned the lens area with air?

sorry about that i couldn't find the first thread i had placed

I keep a can of compressed dusting gas nearby - it is great for blasting out dust and hair from the optics (red light) area.

Just going to quickly add my 2 cents to the other suggestions that have been offered...

desk top it don't have a ball in it just red light

It sounds like you have an optical (red light) mouse. Are you touching the mouse when it starts to go off on it's own? Does the pointer go off on it's own when you don't touch the mouse? Have you tried a different mouse to see if it does the same thing?

I get calls similar to this at work and what I have found that some people tend to lift the mouse slightly when they move the mouse so the Optical (red light) is not directly on the mouse pad anymore. I also found that some were just using the mouse on their desk instead of a proper mouse pad and that was causing the mouse to move erratically. Heck, even the wrong type of mouse pad cause cause this to happen.

Here is a good article from HP of some of the issues with "Optical" mice...
HP Compaq dc5700 Microtower PC- HP PC or Workstation - Why Does the Cursor Behave Erratically? - tis07344 - HP Business Support Center

mouse is still misbehaving badly and driving me insane HELP please!!! the mouse moves very erratically in all directions not any particular direction i have to find it then fetch it back but it zips off again really soon it is an lazer mouse and i have tried changing the mouse too but it do the same with the new mouse!! i have scanned for viruses ect but i can not sort this out i went to check the mouse was working in programs and it says its working fine!!! what the heck is it?????

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Sample template for the DAL Scanner i did a scan but what next?

i am still having lots of problems its pain when trying to do stuff and the mouse keeps moving this is a new mouse new but its still doing the same

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