The "Show Splashscreen" checkbox in the Startup section of the settings doesn't seem to work. Even if it's unchecked, the splashscreen shows on startup. This also happens when stealth mode is enabled (not so stealthy). I'm running version 0.3.0 (2007-04-06) with Java 1.6.0_07-b06 under Vista.
This bug is pretty easy to work around, since you can just replace the "splash.gif" file in the img directory, but I thought I'd report it. YAWCAM is really impressive. Thanks a lot!