I am running System Generator v1.0 with R11. I have installed the documents, which work if I already have a Netscape browser open. If I do NOT have Netscape open (i.e., I do not have any Netscape applications open: no browsers, no e-mail, no Composer), when I click "HELP" on any of the Xilinx block set elements, nothing happens.
This is a known issue with Matlab R11. The work-around is to either have Netscape running before pulling up "'HELP," or to have Internet Explorer set as the default browser.
For more information, please see the "Matlab Known Software and Documentation Problems" Release 11.1 documentation that came with your MathWorks software.
With the new documentation system in Matlab R12, this is not an issue.