Problems launching debugger

When trying to launch my app to debug it I get a message

Process 'globals.js' takes to long to connect to the IDE...

And I see a clock ticking. There is a progress bar stopped at 70% in the lower right corner of Eclipse. And my firewall is off.

What am I missing?

Snow Leopard 10.6.3, Servoy Developer Version: 5.1.2 - build 959

I restarted Servoy Developer a couple of times and now the debugger connects fine.
Not sure why it did not work at first.