Thank you much for the reply, Zentara,

>...its always nice to give a complete, minimal running example, so we can run your code without having to flesh it out ourselves
It's all deep inside different loops, with multiple hash keys and array indexes. But OK, you're right. Next time I'll do it, anyway...

After adding your browsecmd, the black border appears for a moment and then goes. Thanks a lot, you have shown me the main problem!

Yes, I have only asthetic reasons... And yes, I checked, 'highlight' option changes the color of the border. So, I miss only the right color name for my background (the default like silver?).

Thank you again!