UGA usb to vga adapter problem

Hi, I have a mac mini and updated he for a mountain lion, but my UGA usb 2.0 to vga adapter don't work more, what is the problem?
thanks

hi, I finally found a solution for the problem, if you have the same problem go to this link http://www.displaylink.com/support/sla.php?fileid=67, and download the correct driver.
thanks a lot

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  • USB-to-VGA adapter compatible with Mac?

    Hi,
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    If yours was missing the adapter which is shown "In the box", call AppleCare to ask a replacement be sent.

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    Message was edited by: BlakeTron
    Message was edited by: BlakeTron

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    Hi guys 
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    Hi all,
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    I've bought an USB-to-ethernet-adapter and a minidisplay-port-to-VGA-adapter. But I can't use them at the same time. At first, I plugged those two adapters and only the USB-to-ethernet worked. I tried restarting the mac then only the VGA-adapter worked. I also tried to reinstall the OS.
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    Thanks Malcolm - Do you think it might be worth trying to flash the firmware on these cases - there seem to be updaters available on Prolific's website. Obviously I'd have to do it on a PC. I've emailed Prolific asking them about my problem. No reply as yet, and I'm not holding my breath! Do you know if there are any other posts on these boards relating to Prolific? Stupid question really - I'll just do a search...
    Thanks again for your post. Cheers from Bonnie Scotland.

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    This year at Randolph-Macon College we replaced the Math lab Emac computers with IMac G5 Intel machines. The laboratory has an NEC model MT1050 projector with a manufacturer’s date of August 2002. We can not seem to get rid of ever present scan lines. We can slow them down and speed them up by adjusting resolution and refresh rates, but nothing will remove them. We are connecting the IMac to the projector via the Apple Mini-DVI to VGA Adapter. It is specifically designed for use with the iMac (Intel Core Duo), and the adapter connects to the Mini-DVI port of the computer and the VGA end of the adapter to an external VGA monitor or projector.
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    this is an odd problem. I potted a presentation that contained a qt movie. The video plays with sound just fine via the vga adapter until you plug in an external speaker system or earphone. the sound stops.
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