I haven't been able to capture video in Vidcap w/ my ATI TV-Wonder since Vidcap 2.0b (which worked perfectly BTW).
When I open Vidcap 2.5 I hear a split second of audio and then Vidcap tells me that no device is detected.
Note: ATI TV Wonder uses a Conexant bt878 chipset instead of the Rage Theater used in the All-in-Wonder boards.
Driver version is 4.12.0003 (bt848.sys). It is a WDM driver. I noticed that the TV Wonder is finicky with a lot of capture programs because it requires a second crossbar for audio (which a lot of WDM capture programs don't seem to support).