is there a way to display glossary terms as tooltip/popup?

Not sure about what your asking there. Could you explain in what context you'd want this type of display ? Or ideally make up an image showing what you mean.

Bump. No more details on that request ?

Interesting feature, although it has a database cost. I added it in today's dev version, which should be rerolled in the next 12 hours. Thanks for the idea.

This is not a problem indeed. There used to be some problems with URLencoding of fragments for cyrillic, but only on sites without clean URLs, which are no longer supported anyway.

Have you cleared your cache after changing that setting ?

Please post a dump of the HTML being generated for such a link. For <dfn>CSS</dfn>, it should look like <a href="http://drop6/g2/entries/CSS" class="g2-dfn-link" title="Cascading Style Sheets">CSS</a>, assuming a definition for CSS exists in your local glossary.

The tooltip is taken from the node teaser, which in G2 is also the "Entry expansion (for acronyms) or translation" on the edit forms, which appears by default as "In other words" on node views.

In your case, you have left that field empty so G2 displays it as you created it: empty.

I suppose your configuration for the Filtered HTML input format includes the (default core) LF to BR filter. Since G2 uses teasers, which have a format (unlike titles, which are plain text), it needs to apply the input format for the teaser; so if your content includes a new line after that filter, this will be converted by the core filter to a BR.

I am not able to reproduce the problem on a test site, though.

This is a solution. You can also analyze further which filter causes this: on my test system, even with the end of line converter, these never appear, so it is probably an other filter. At any rate, this does not appear to be a G2 issue.