This was resolved via the ticket system. In the current release of Isadora, if you have some special characters in the file name, eg / \ | ? * ", then the capture actors won't work correctly. This has been fixed in an internal beta and thus this won't be a problem once we have a new public release.
Yes. That's right. If you choose a render speed that is < 100%, every time based function in Isadora is slowed down proporionally (i.e., Wave Generators, Envelope Generators, Trigger Delay, et. al.) This gives Isadora more time to generate every frame and thus should result in full and accurate frame rates. The only caveat is that you cannot have real-time input because it is not slowed down proporionally.