Using 188.8.131.528 on 32-bit WinXP SP3 trying to do window caps for an Oracle ODAC client installation (http://www.oracle.com/technetwork/database/windows/downloads/utilsoft-087491.html -- free registration required to download). The captures appear to work, but the resulting .PNG file is "blank" (all white, but the correct size of the window). I've tried another Java-based installer (jEdit), but window caps on that installer work fine.
A workaround is to do a region capture, but this is more time-consuming. I'm trying to dump SnagIt because Greenshot has been faster/easier to use.