I'm a bit lost. Have spent some time, but don't know where to look anymore:

About a year ago used a TC with XPe, squeezebox server and squeezesoft on same machine.
On that time it worked well.
But lost interest and shut it down.

Now I'm using a thin client with tinyxp rev. 11 incl.ie8.
Installed SBS 7.6.1 with squeezeplayer on same machine.
But squeezeplayer won't connect to SBS.
After some hickups I managed to install squeezesoft, but says it's connected but I only see the (empty) playlist in the menu but not my music library.
Squeezeplayer from a different pc works flawlessly.

What steps to follow? Deinstall everything and start all over?
But what to diferent in installing?