I'll check out skype now and advise.
In the meantime I have the following extensions installed:
Pro Maps for Google 1.0.7
Form Toolkit 1.0.0
Cookies Toolkit 3.1.1
Digital File Pro 2.0.4
Security Assist 1.1.9
Universal Email 4.0.1
Data Assist 2.1.0
eCart 5.0.7