I just want to confirm this bug. No scripts loaded (though I've bound some keys).

using
Windows Vista Ultimate 64bit
Internet Explorer 7
Core 2 Duo 6400

btw this is probably reported somewhere but mIRC does not open links in new tab in IE7 even though the option in IE is turned on. This is a problem with other programs (ICQ) too. However it is strange that most programs manage to open links correctly in new tabs but very few (including mIRC) somehow always open them in a new window. This happens under XP and Vista and it's been like that since I got IE7 when it was officially released.