Problem: It has come to our attention that the release archives obtained from silverstripe.org/download are corrupted in certain Windows setups, which renders the CMS unoperational. This only affects the tar.gz releases, when extracted with WinZIP or IzArc.
Verification: You are affected by this problem if files in the following directory doesn't have correct *.php extensions (truncated to *.ph):
Solution: We recommend either extracting the tar.gz archives with [url=http://www.7-zip.org/]7-ZIP[/url], or downloading the newly available ZIP archives from [url=http://silverstripe.org/download]silverstripe.org/download[/url].
Thanks for your patience.