If an internet stream is selected in MediaPortal / Configuration / My Radio as the "default" radio station (to be played when MediaPortal is launched), the error message "All tuners are busy..." pops up when MediaPortal is started, and then nothing....

But, the internet stream can still play correctly if then selected in My Radio....

More details are available here:-

http://www.testteam-mediaportal.com/Joomla/forum/showthread.php?t=651