Cannot install Designer. Install error 1158

[gbulla]

Has anyone had a problem installing LiveCycle Designer?  I keep getting (Installshield) error "1158", which apparently means it's having problems with the content of the setup.ini file strings. However, that file and its contents don't appear corrupt.  I've tried installing several times and have even re-downloaded the zip, all without sucess. 

Any ideas? I am running Windows 7 32-bit. Note that this OS isn't specifically mentioned in the setup.ini file, but online discussions suggest that the Designer will run under Win 7.

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