Middle Click -> "Next Window" (NOT dead horse... =_=)

[CeeJaii]

Okay, I've searched all over the show online. Lots of people have this problem, but it's usually fixed really simply.

Deal is, middle clicking with my mouse (PS2 or USB, doesn't matter) causes the "Next Window" function to be called.

Now, I can reassign the middle button to a couple different functions. The majority of functions work fine. For example, if I assign it to Right Click, and hit the button, the normal Right Click menu comes up, no problems.

The problem arises on the following: "Middle click" (or "Middle mouse button", I forget which) and "Auto-scroll".

If the button's set to either of these functions, it performs the same action as the "Next window" function.

That said, it's not a problem with the middle button alone. If I assign any other button to "Middle click" or "Auto-scroll" it still performs the "Next window" function.

Now I've shuffled around with various drivers and stuff trying to fix it, no avail. At the minute I've rolled back to the windows defaults, but as I spend the majority of my time browsing via Opera or Firefox, middle-clicking to open a link in a new background tab has become engrained in my nature, and I love it too much to want to "un-learn" it.

This is a fresh windows install. It was my brother's "old" machine (he upgrades every 6 months or so, so the computer itself is still pretty top-line), and according to him he used middle click all the time, so it shouldn't have defaulted to that or anything.

Any help at all would be appreciated, even from a registry-understander-person who could maybe tell me how to bypass the "Next window" function straight to "Middle Click", if it _is_ engrained in the system for some really odd reason.

Cheers,

CJ