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temporary displays content outside of container

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On two customers machines with Windows 7 and Firefox 26 happens following: At the webpage I have a div container which display the several different content, depending on the menu item choosed. Only with 2 contents there is a wrong display: Below the container there is a single line of content text which should not be visible (outside of container). This line disappears after some seconds.

I can't reproduce this on Mac, on Windows XP and Windows7, where the Windows machines are running in VMware. Neither a friend of mine can reproduce this. On the clients machine the wrong display is not shown on IE. This machine has a ATI Mobility Radeon HD3400 graphics card.

You can test this behavior at this 2 urls:

http://www.sterac.com/test/de/italien_griechenland_transport.php http://www.sterac.com/test/de/uebersee_transport.php

You can see the wrong line at this screenshot: http://gondomir.de/daten/steracfehler.jpg

On all other menu items the wrong display doesn't appear. The page is valid XHTML 1.0 strict. I also can't see a significant difference between the pages which works and which not. The pages makes heavy use of JavaScript.

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Additional System Details

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_1) AppleWebKit/537.73.11 (KHTML, like Gecko) Version/7.0.1 Safari/537.73.11

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Question owner

Edit: This error does not show, if you scroll in the window and reload the page.

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cor-el
  • Top 10 Contributor
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10747 solutions 96723 answers

Did you try disabling hardware acceleration?

Try to disable hardware acceleration in Firefox (you need to close and restart Firefox).

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
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Question owner

Hi! I got the response from the customer. Disable hardware acceleration fixed this issue. As I can not reproduce this on my machines, is there a hint which HTML/CSS/Javascript code may cause this error?

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