Did you check the release notes? Do you have the required version of java installed?
Web Browser Versions and Java Runtime Environment Versions
SDM can be used with the following browsers:
?Firefox 1.0.6 and later versions
?Internet Explorer 5.5 and later versions
?Netscape 7.1 and 7.2
SDM requires Sun Java Runtime Environment (JRE). The following versions are supported:
?JRE1.4.2_08
?JRE 1.5.0_06
Although the SDM application requires JRE to run, the Cisco SDM Express application included with SDM can run under the native Java Virtual Machine in the supported browsers, and also JRE.
PC Operating System Versions
SDM can be run on a PC running any of the following operating systems:
?Microsoft Windows ME
?Microsoft Windows NT 4.0 Workstation with Service Pack 4
?Microsoft Windows XP Professional
?Microsoft Windows 2003 Server (Standard Edition)
?Microsoft Windows 2000 Professional with Service Pack 4
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Note Windows 2000 Advanced Server is not supported.
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SDM 2.3 is available only in English. SDM 2.2.1 is available in six additional languages: French, German, Italian, Japanese, Simplified Chinese, and Spanish and. SDM 2.2.1 supports full SDM functionality released prior to SDM 2.3. If you want to use SDM 2.2.1 in one of these languages, your PC must run one of the following operating systems:
?Microsoft Windows XP Professional with Service Pack 2 or later
?Microsoft Windows 2000 Professional with Service Pack 4 or later
See the Release Notes for Cisco Router and Security Device Manager Version 2.2.1 for more information.
HTH
--Leon
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