Strangely enough I had absolutely heaps of trouble trying to use the free/bundled Virus SoundDiver CD with my Indigo (v1), and that was even after downloading the updates (for that CD Virus SoundDiver version) at that time. I tried everything over a stretch of about two days, but my computer and virus just refused to detect and communicate with each other.
A bit controversial, but seeing as I only use SoundDiver with the Virus alone, I decided to ditch the Virus version and try a cracked version of the full SoundDiver program and that worked brilliantly from the off, without a hitch. I still don't know why the original CD version didn't work, as the settings and configuration were exactly the same.
Even though Apple now owns Emagic, the latest full Windows version of SoundDiver still caters for all Virus owners up to and including the "C" engine. And of course Access bundle their own proprietary, custom-designed integrated software with the new "TI" Virus, which completely does away with the need for SoundDiver for this incarnation. Yay!