My cursor sticks

My cursor sticks for 2 or 3 seconds and the window often jumps to the top. It does not seem to be a mouse problem. I keep it clean.
Can you help, please ?

Has it always done it or only since what change or update?

In all applications, some, or one only?

Is there any particular action or event that triggers this?

Tell us more about the hardware, mouse, and OS please.

My sticker curses. It’s embarrassing. %^&*!@#()_#$%^& See, it did it again.

It happened only recently, perhaps after I downloaded Nero and some other music software, and a new Canon scanner

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In all applications, some, or one only??
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In all applications

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Is there any particular action or event that triggers this??
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Every time I use it. I happened several times while writing this post

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Tell us more about the hardware, mouse, and OS please.
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Compaq Presario 6000, Compaq mouse, Windows XP Home, 1 year old material.

Thanks for your attention

So it’s a standard PS2 ball mouse? See if you can swap it with one in another PC for a while as a test.

Have you tested for spyware? Run at least two apps to check this.

Hit ctl-alt-del, click on the Processes tab and the CPU heading. Is any process hogging the CPU?

Is the mouse wireless by any chance? I’ve had similar problems when batteries run low, or sometimes due to interference (maybe another wireless device.)

It’s a ball mouse. Seems to be a virus problem. Will have something done in the next two days.
Many thanks.

(Damned virus)

It was the mouse after all. Stomach ache. Thanks everyone!