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Touch pad malfunction in Windows 7 Ultimate for Dell Vostro A860
Hello,
I have a Dell laptop, model Vostro A860. OS is Windows 7 Ultimate. Since few weeks ago, suddenly, touch pad stopped working. By connecting an external USB mouse, everything works fine.
Last week, I discovered that on battery mode the touch pad is working fine. I did not see this from the beginning since the laptop is used only during evenings and was always on power.
So, finally, my problem appears only if the laptop is connected to the power supply. Again, an external mouse is working on both cases.
I just want to ask you if you detected this problem before and if you discover any solution: change the driver, adjust the power settings,...? Is very strange that on battery mode is ok everything.
I'm not sure that is a Windows problem or something wrong with the HW.
Thank you!