MartiniB,you are a genious!!!
Yes,you were right...the trick with taking off the power
after the tranmission from PC to the box solved the problem..
And,also,I had to check the box "Untouched by SDT" in service
properties,because otherwise the name is there only until you
switch to that channel again....then goes back to the old name..
Anyway,thanks so much mate...
You saved hours & hours of my time and I doubt I would
ever come to the right move....hope I'd be able to
give the favour back...
Thanks once again!