Technical information
Vision impaired users
Minimum computer requirements
Internet browsers
Technical troubleshooting
Minimum computer requirements
The following information lists the minimum computer requirements using Windows or Macintosh. The portal has not been tested with Linux or with any other operating system.

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When you apply for a digital certificate you will receive a copy of the Tax Office online services set-up CD. This will check your configuration. It also provides copies of the supported browsers and the Sun JVM.
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Common-use signing interface (CSI)
For Windows users:
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For Macintosh users:
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- select the Start menu
- select Programs
- select CSI
- select CSI Management Utility, and
- select About tab.
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- open the Applications folder
- open the CSI folder
- open the CSI Management Utility, and
- select About tab.
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We recommend you have Java 1.4.2_10 or 1.5.0_06 or later installed. If you have an earlier version, it is important that you read the Sun JavaTM security update page.
Download the latest CSI version and Java from the CSI website.
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