The problem: when pushing the stop button, the player keeps on playing until the buffer is empty - so for example 5 seconds. Searching for help, I found a topic here. It was explained that some MM versions had problems with SqrSofts plugIn, the problem is fixed with a new version and therefor the topuc was closed.
This is some weeks ago, and today I tried my luck: I just installed the newest available version of MM. And now? Just trying to configure the PlugIn leads me to an "invalid floating point operation", and MM crashes.
So I ask you: do you know a working method of crossfading and gapless playing?