Can browse, cannot play

[simoncn]

There is a discussion in this thread about a problem caused by MinimServer setting the Java system property java.net.preferIPv4Stack to "true". To solve the reported problem, I am planning to provide a way for a MinimServer user to optionally disable this java.net.preferIPv4Stack setting. The default will be for MinimServer to continue to set this Java property, so existing MinimServer users won't be affected by the change.