Yeah, I get this problem as well.

It only seems to happen on these forums (as far as I know).

Mousewheel clicking on a topic opens a new tab with the link you clicked on, but loads the link from the page you clicked from.

I don't think there's anyway around that, I'm afraid.

Oh that's a little clearer explanation.

I don't seem to have that problem. Try using firefox. Find 3.6 if you can, 4.0 and onwards suck.

I have the same problem...

If I click "open link in new tab" the fist tab and the new tab opens the link....

I'm confused as to what your problem is. You mousewheel-click on a link to open it in a new tab, and an additional tab pops up? What index, the main threads page?

For Iron (chrome basically, thanks to Spengbab for the suggestion)
Whenever i use my mousewheel to open up a new tab, it also opens up on the page i had the index on. not that big of a deal, but it does get annoying after a while.