It was pretty easy to tell that these people were using it because they were getting headshots 19 out of 20 times.

If PunkBuster comes out with an update that blocks this cheat, I would also recommend using it. I've been on a number of servers that use it and it isn't any more work to connect. Also, you'll know that the people that are connecting and not getting booted are more likely to be there to play fair .... hopefully.

The reason that I don’t believe cheating is a big deal on our server is because Chad, Hauser or myself are always toward the top of the rankings. Of course there are always those games where we all suck but for the most part we are near the top.

I have found even when playing with a cheater/really good player it is best to out smart them by hiding or doing something they don’t expect. Also it is easy to spot a cheater by following them after you die and looking for signs of cheating (they jerk around when walking as the “aimbot” locks on to the color of flesh in the background or they look through walls)

I'm not sure if anyone posted this yet, I haven't seen.

There is a new way to wallhack, not just Counter-Strike, but just about all
3D shooters using Glide or D3D. It actually allows the user to change an
invisible wall option via an update for the 3dfx toolkit provided with the
new driver.

I began to suspect something not too long ago, when I noticed how it was
becoming easier for people to kill me, as if they precognition of my
whereabouts. Sometimes someone would jump out from a blind corner that I'm
covering, and already know to be facing EXACTLY in my direction, already
firing at me before they jumped out from cover. Statistically speaking, they
should be wrong 50% of the time, in the event that they were blind-firing to
cover themselves during movement and I happened to be behind them and not in
front. But the same player always knows what direction you're at, then
something's up.

A few times I was shot through walls with the Magnum rifle, and there was no
way for anyone to know I was on the other side, unless they had ESP or were
somehow cheating. This even happened on Punkbuster servers, so I became
convinced that there was some sort of new wallhack. After playing with
several co-workers one Saturday afternoon at our place of work, in the same
room (gotta take advantage of that bandwidth!), we all noticed this, and
when any of us were in spectator mode, we could verbally confirm with full
certainty that we were being repeatedly killed through walls by the same
players who shouldn't have known, or that the players seemed to hesitate and
reposition themselves when ONLY approaching areas where one of us was
definitely hiding. Yes, sometimes players who are playing at the same
location could quickly guide their living buddies when in spectator mode,
but we ruled that out after realizing that they'd have to have almost
identical pings, which rarely surfaced. Most people are physically playing
by themselves (get your minds out of the gutter!)

A group of people, the "X3dfX Community Development", have been further
developing drivers for Voodoo 3/4/5 cards after 3dfx went under and sold
their assets off to nVidia. These new drivers add additional functions to
the 3dfx toolkit, and one of these is an option that allows you to make
walls invisible.

I just discovered this 2 weeks ago, and have downloaded and have tested it
on my Voodoo at work. It works very well in the Half-Life series, as well as
in the Quake and Unreal series of games. Because this is done through the
drivers for the card, it is NOT detected by punkbuster, at least not yet as
I know.

It was amazing. When the walls were invisible, it was even easier to tell
who was cheating. I could look through a wall and see an opponent on the
other side, in a corner, not facing the doorway, or checking their rear, but
actually facing the corner as if looking through the wall.... DIRECLTY AT
ME, adjusting their position in perfect coordination with my movement, just
waiting for me to move towards their doorway. I actually noticed more people
who actions suggested they were wall hacking then when I couldn't see them.

This needs to be out in the open, so that it can be circumvented before it
gets worse. I have no qualms with X3dfX, I think it's really cool what
they're doing, and I love all the tweakable features they included. But I
think it's a shitty development that there are quite a few people out there
obviously taking advantage of this. The Voodoo was immensely popular, there
has to be a huge number of players out there using them, enough to make a
sizable minority who have learned about the new drivers and decided to use
it to their advantage.

You can read all about the development and download the drivers at http://home.tampabay.rr.com/mwarhead/index2.htm