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Windows 7: Dell Keyboard Strange Issue

28 May 2010   #1

windows 7
Dell Keyboard Strange Issue

I have a real wierd keyboard issue, Im using a Dell Inspiron 1420, for almost 2 years, updated the HD, and the RAM, so it´ll being working nice, until the day before yesterday. The problem started like this. I started the system and asked me to select the prompt device, never done that before -I know you can configure it, but I did not mess with that -.
So all goes Ok and then I find out that some number keys didnt respond, from 1-4 <that, I could type since there´s also a Fn key that allows me to type them using the proper key <Fn+j, Fn+k, Fn+l and Fn+u> respectively, and the numbers from seven to nine, that I could type them using the on screen keyboard. So I thought it was a simple issue, but as I continued working, some other keys began to open random programs <like the one´s in the quick access bar o another random programs>, then the systems locks off by itself, locking more keys, so its impossible to log on again. Lately, I found out that switching the user resolves this issue, but the numerical issue is not solved. Because Im out of the warranty time, I sent the computer to a technician, he firstly tried to change the keyboard membrane, not a change was made with the new keyboard membrane.
I found the same problem posted in here Keyboard Virus? BIOS Virus? - TechSpot OpenBoards, but they don´t seem to find an answer for it.
I run several antivirus and anti-spyware programs in my computer, none of them had found any threat. I also checked if this problem was a Windows seven issue, loading a free Linux OS disc, and found out the same problem. What should I do? Change of motherboard?

My System SpecsSystem Spec
28 May 2010   #2

Windows 7 x64 finally!

Hi megapaco, welcome to the forums
The technician changed the membrane, but not the keyboard, right? Have you tried a completely different one? I think yours might have gone bad, the electronics, not only the membrane. Is it a wired or wireless keyboard?
My System SpecsSystem Spec
28 May 2010   #3

windows 7

thanks for the reply, yup, he changed the keyboard membrane. Its the laptop keyboard. Ill try with an external USB keyboard, anyway... that could explain the nonsense keyboard pattern, because I forgot to tell that whenever it starts with this nonsense it sometimes happen that some numbers of that ¨black list¨appear instantly in some text based application <word processor or instant message service>. Then the mess begins...
My System SpecsSystem Spec


 Dell Keyboard Strange Issue

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