2009R2 : Cannot connect the Change Listener

hello
I have installed a customers database and try to get access with RTC (classic works fine)
I get the message :
<img src="http://cd8ba0b44a15c10065fd-24461f391e20b7336331d5789078af53.r23.cf1.rackcdn.com/vadysoft-mibuso.vanillaforums.com/FileUpload/42/d290d3cd1141e2e501cc7f63182801.jpg&quot; />
I read some posts about this but no help
I followed the indications on Enabling the Object Change Listener on MSDN :
<img src="http://cd8ba0b44a15c10065fd-24461f391e20b7336331d5789078af53.r23.cf1.rackcdn.com/vadysoft-mibuso.vanillaforums.com/FileUpload/90/0bcaf64350c5522602b3b24c331947.jpg&quot; />
<img src="http://cd8ba0b44a15c10065fd-24461f391e20b7336331d5789078af53.r23.cf1.rackcdn.com/vadysoft-mibuso.vanillaforums.com/FileUpload/1b/f77fd262d15ae5fdd4a6dda4c73b3a.jpg&quot; />
<img src="http://cd8ba0b44a15c10065fd-24461f391e20b7336331d5789078af53.r23.cf1.rackcdn.com/vadysoft-mibuso.vanillaforums.com/FileUpload/c1/b899c32047c9cf47165a6400fe10c5.jpg&quot; />
Can't find a solution - any ideas ?
Thanks:)