[Prob]New here and problem with skype

I used to use Ubuntu and am totally new with suse.

Today I changed my os to suse, but things went wrong when the skype was installed.

My os is opensuse 11.0, I download the skype-
installed with command:
rpm -Uvh skype-

when login on skype and called the testcall, it says:
“Playback problem”, and failed.

My pc is quite old, but I ran skype on ubuntu well.

Anyone who can give some advices?

Many Thanks!!