Install envision 4.1 from scratch on a SYS-G-RSA500 model 560
I believe you would have to call support and have them ship a new DVD.
Personally I would go to SCOL and look up the md5 checksum for the newest version of 4.1 from there. There was early release of 4.1 that had issues and was immediately re-released. If you compare the md5 checksums that would provide a definitive answer.
FWIW 4.0 Patch 5 seems to be the sweet spot, if I was building envision from scratch, I personally would head that direction until 4.1 is sorted out.