I found an older machine, on which SilverStripe actually works. BTW, with my regular machine machine I cannot even access the online theme demos. All I get is the SilverStripe logo webpage, and that's it.
I attempted to use three other themes, namely highway, natureweb4, and higherground. In all three cases I get an error page instructing me that [Warning] None of these templates can be found: Page.ss, ContentController.ss The error results from
To utilize the other themes I simply change the literal string parameter for SSViewer::set_them('');
I am changing the themes while the work is in progress, i.e. I already completed a good party of the site, using the blackcandy theme.
I also get the same errors, if I attempt to freshly login to the CMS as admin, after setting it to one of the above.
If it's of any relevance, I'm running on XP Pro.