If you're still using skype, even tho you are sick and fucking tired of skype making shady deals with other providers and not letting you get the compiled 64bit (they provide you with a 32bit binary, even tho they say its for a 64bit machine), and you've installed all the relative ia32-* compatability libraries, and you are getting various odd errors like skype not finding libstdc++.so.6 then, i recommend strace's to sort it out..

not to mention the linux version being at 2.1 and windows at 4!!

From their site..There may be problems with getting sound from Adobe Flash v. 9 and earlier, Wine and Skype when these applications use the ALSA protocol.