Question about USB mobile modem

I have Toshiba Equium with Vista Home Premium. I connect to the internet using a huawie mobile modem. It comes pre installed with it drivers you just plug in and it installs its own software.
I have noticed it will only work on the USB port where I originally installed from and not the other. I have uninstalled the software and tried installing from the other port and this works so its not the USB ports.
Any ideas?

this is because each of the usb ports have thier own drive letter e.g. on my pc they vary from e,f,g,h,i,j depending on how many are connected and if there is a hub or whatever
when the software was installed the directions to reach the usb modem were go to drive e.g. [J]
when you plug it into another port the eltter changes as it is in a different place so when your software tries to find it, it will look in the specified place and it will see nothing is plugged therefore will think that no modem is connected at all.
understand?
hope it helps
Bas

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Xiaohui wrote:
> I am currently doing a project about designing standalone data
> acquisition module with USB 2.0 interface.
>
> For the hardware, a USB FIFO chip(FT245BM) is used to communicate with
> PC via USB with the driver DLL provided by the manufacturer (FTDI).
>
> I want to use labview (version 7.0)to develop a data logging software
> and I learned that the functions in the DLL could be called by the
> 'library call function node' in labview.
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> My question is:
> 1.Apart from labview, do I need to intall Measurement and Automation
> Exploere to configure the hardware before I use it in the labview?
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> Could anyone be kind to explain about this as well?
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Rolf Kalbermatter
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a division of Test & Measurement Solutions

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Attachments:
gpib.gif ‏2 KB

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