Airtunes dropouts with Mac mini to Airport Express


Hi,
I just got my Mac mini (2 GHz)hooked up to the airport express (wireless N version). I am having audio dropouts every few minutes - very annoying. Anybody have same problems? How do you guys fix this?

Right now I have the Airport Ex configured to join my network. The wireless router is b/g/n version. The airport in one room below the mac mini.

Thanks.
jeanluc07
I finally finished with getting the AEx hardwired to the mac mini. Problems solved. Using with the iTouch is great as a remote.
Airport does not work well with some security protocal e.g WEP, I do not recall the best setting WEP or WAP but i had dropouts witch was fixed buy simply changing my main wireless router security setting, yes you may have to change password.