Hello There,
Do you have all Windows updates and updates to your system and any hardware devices by the manufacturers?
Please also see these:
https://support.skyp...vers-are-wor...
If you are using WIN7 please see this:
https://support.skyp...guide-Windows-7
http://support.skype...y/CALL_QUALITY/
Note: the above link has 2 pages so please view them both.
https://support.skyp...ake-a-test-call
https://support.skyp...y-audio-quality
Also, you can use the Skype client program window at anytime and do:
Hellp -> Call Quality Guide -> Sound Check Wizard
A new version has just been released August 23, 2011:
Please download from here and when prompted click the open or run button:
http://skype.com/go/getskype-full
This new version is 5.5.0.114 to check what version you have, using the main Skype client window please do:
Help -> About Skype
Hope This Helps