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Text comes out as gibberish; looks like a coded language

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Just had memory upgraded in my Dell Optiplex desktop running Windows XP Home w/ SP3. Windows explorer runs as before. Both Firefox and Thunderbird text is an unrecognizable gibberish of some code/font. I have uninstalled and reinstalled with no relief. Web page text is in English, but all other test, to include tool bars, are gibberish.

Just had memory upgraded in my Dell Optiplex desktop running Windows XP Home w/ SP3. Windows explorer runs as before. Both Firefox and Thunderbird text is an unrecognizable gibberish of some code/font. I have uninstalled and reinstalled with no relief. Web page text is in English, but all other test, to include tool bars, are gibberish.

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Can you attach a screenshot?

Use a compressed image type like PNG or JPG to save the screenshot and make sure that you do not exceed the maximum file size (1 MB).

Did you check the encoding?

  • Firefox > Web Developer > Character Encoding
  • View > Character Encoding

Try to disable the website fonts as a test and try a few different default (serif/sans-serif) fonts.

  • Tools > Options > Content : Fonts & Colors > Advanced ([ ] Allow pages to choose their own fonts, instead of my selections above)