Confirming this again. Happens to me multiple times everyday.
Conditions to reproduce it so far:

-Must be scrolled up in the buffer.
-There must be a link in there.
-A line(a message if in a chan) must be added in the window.
-Links then do not appear as clickable.

To resolve: scroll up again and the links become clickable again

Possible other needed conditions:
-I think that everytime it happened I was hovering already another link(ie 2 links present in the buffer)

OS: Win7 x64, vanilla mirc

EDIT: oh and as drum said, moving the cursor is not enough. One must *scroll* to fix it.

EDIT2: it's also present in 7.05 btw

Last edited by DeathWolf; 23/06/10 02:50 AM.