:smileysurprised: I went to the Microsoft Website and installed an updated version of my mouse which included the keyboard and trackball(from Intelligent 4.0 to 5.2). This did not help my problem. It appears to me to be the trackball. I checked and have a dust cleaner and cleared any possible accumulated dust. I went through diagnostics via the Resource CD and double checked settings.  It is like there is a line midway of my monitor screen. When I try to move pointer from right to left it runs into this line and goes vertical only-up and down and will not go to any thing to the left of it. I have to do the circular motion on the mouse pad to get it over there. But it in tern happens over and over. I am lost as to what is causing this. Thanking you in advance ...................................

I am experiencing similar recent problems, which is the reason why I am here.

Hi Kwanah,      I found the solution in another forum. It just needed cleaning!. Thought I was gonna have to buy a new one.  I had to take my mouse apart..(.there is only one screw.in the little hole on the bottom)...and clean the two little black rollers that are by the track ball (.the round ball). You may have to take a kleenex and wipe them good, it is like stuck on lint.(smile)  But be careful when you seperate the two parts., a little black piece came off  from where the scroll wheel is and I had a hard time figuring out how it went back into place, but it does snap back into place by the scroll wheel, the little part that sticks out goes into the hole in the wheel itself-the part that sticks out from the wheel rests on top of the side with the "black" resting place. I had the exact problem and now mouse works like first time use. Hope this helps. Let me know if it does or if you have problems.  Good Luck!

OH, It is a good idea to upgrade to 5.2. It is the same software from Microsoft's support website. I found it under "mouse drivers" in search when I started having problems. Got the support site whenever you need drivers..I was told not to get drivers from Windows update. Microsoft will give the correct upgrade when you input you OS information. The upgrade to 5.2 from 4.0 is all inclusive for the mouse, keyboard and trackball.

I joined the newsgroup via Outlook Xpress for Windows. It entails any problem you are having with Windows , any and all components including hardware and software.  When you post a question there, it is usually answered within 24 hours by a MS advanced member or representative. Go to the Microsoft Support website to get the address to set it up   and browse the newsgroup you may find someonelse has asked that very question, but you have to register to post a question or reply. I got my response the next day. I found here, it can be a very long wait and only regular member answer. In newsgroups experienced representatives answer and direct you to good sources .  Good Luck! So sorry you are having such trouble finding solution, but try a newsgroup on Microsoft...it is their software. Dell just made the computer.

My wireless intellimouse explorer problem has disappeared.  Suspected culprit is Norton Antivirus.  Yesterday, liveupdate downloaded and installed another patch. Afterwards, no more tracking pauses, windows freeze ups or other misbehavior.

I had previously visited the Microsoft newsgroups where I searched for similar mouse problems.  I did not post my mouse problem.  I may go back to ask the question, when do you give up on your wireless mouse?  Obviously from this experience, downloading the latest drivers, which I did not do, is not the best troubleshooting solution.

While I am quite aware Dell did not make the wireless mouse or write the antivirus software, this forum provides the closest chance of attracting someone with the same or similar configuration.  We all own Dells.  Plus, I am rather methodical.  Before someone can help you, we need to remove as many variables as possible.

Perhaps, we have added something to the peer-to-peer support these kinds of forums provide.

Take care,

kwanah