Good afternoon..

I have an old Dell 4600 model desktop with a wireless mouse & keyboard ( over 7 years old btw ).

Lately, I have been having trouble with an un-responsive, or, slow mouse. I thought it was just certain websites I frequent & thought my PC was infected, , however, I have noticed the same trouble when I simply launch a program without IE7 launched.

With some programs it's fine. With some websites it's fine.

I don't think it's just an "old" mouse.

And of course, I did try new batteries...

Try a wired mouse! I just replaced the wireless mouse on my home pc as it was doing the same thing, now the problem is gone.

I had that problem and had to get rid of the anti-virus (McAfee). It just got too bloated for the system to handle. Try shutting your anti-virus down and see what happens.

-Hal

You can also try deleting if from the Device Manager and reinstall the drivers.

Is there any other wireless devices operating nearby? I've noticed that when my wife and I try use our wireless mice together, mine gets less responsive, while hers is perfectly fine.

Open task manager and see if there is anything new or unknown running in the background...even a screen saver can do this...also you might want to check and see that you are free of spybots, download spybot search and destroy(free version) and run a scan

best to go to the manufacters website and get the latest drivers. You would be suprised how important this can be. I had issues with the touch pad on my Dell laptop. Went to the site and got the latest driver...voila!!