Here's a screen capture of what my webcam is showing:
I think it is a driver problem, so I headed for my laptop manufacturer's website: http://acer.com/ and found 3 different drivers for my laptop model (an Acer Aspire 5745G) and downloaded them all not knowing which one is for my particular model. I tried to install any of them, but with no luck.
I also tried to adjust the settings of the webcam via Skype's interface, but after a restart the situation returned to its previous state...
Please help, I really need to be able to make normal video-conferencing using Skype, Jitsi, etc.
Thanks in advance for your answers, they are much appreciated! :)