Leon wrote:

I cannot open powerpoint presentations from my e-mail (attachement).
Powerpoint viewer 2003 is installed.

Here you go: http://windowsxp.mvps.org/ppsopen.htm

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Vincenzo Di Russo
Microsoft® MVP - Most Valuable Professional
Windows - Internet Explorer since 2003
My Blog: http://blogs.dotnethell.it/vincent/
My Home: http://mvp.support.microsoft.com/