Cannot say I have ever had any such problems. Must be some setting in your computer and of course, under Skype's TOOLS menu you can check the settings for Video and Audio as sometimes, due your computer setup, Skype can select the wrong device for Sound - will show the options available for easily changing to suit as required.
Zone8: Although I am a handsome genius, when I stand in front of a mirror, I vaguely recognise the ugly idjit standing on the other side!
LINK: For B+W with Epson 1400 (and other models) using black ink only PLUS other useful tips:
Cleaning DSLR Sensors, including Kodak DSLR Factory Cleaning method:
Solving back/front focus problems on Sigma and most other DSLRs
PDF format list of lenses you can print or download - covers Italian Flag YES/NO for DCS 14n but applies to others. http://www.photosnowdonia.co.uk/ZPS/ItiFlagLensList.pdf