Each time that I play a video with subtiltes in Spanish every stressed letter it's changed by a character. i.e: Situación- Situaciª@n. It's very uncomfortable. I use Windows 7 64 bits Service Pack 1 and occurs in every extension of subtiltes (srt, sst...). This problem started since 0.6.9 version
Looks like those subtitles are encoded in utf8. Go to preferences->subtitles and select UTF-8 for encoding.