I have a need to produce a short introduction video (screencast) for an application I've done. For this I've tried to use applications such as recordmydesktop (with gui variants) and xvidcap. These applications work well. However, the problem is that the videos are extremely bright, like photographs taken with too long exposure time. Since this problem exists with both the mentioned applications, I believe there is something wrong with my setup.. but what? I have no idea.

All help appreciated!

cat /etc/issues says: Ubuntu 8.04.2