Crazy lag in WoW

Since the new patch I can't even play my 5 man team anymore. My team lags so bad it is rediculous. Never even had a minor problem running all 5 even at peak hours. Is anyone else experiencing bad lag?

UPDATE ---- THIS IS ONLY HAPPENING IN INSTANCES ---- hen I join an instance with all 5 it is horrble, but walking around the normal world it is perferct.....

Ok, been studying it a bit and it seems only my main monitor (with my one toon) is lagging... the other screen with the other 4 toons on it is running just fine.. wtf?

tried setting the graphics to a minimum on instance/monitor one and makde no diffeerence.

the settings are exactly the same between all 5 instances and still my main screen toon still lags badly while the other are no prob...

For example: I am doing as large pull to AOE them... I am spamming my #5 and #6 keys which are all 5 toons AOE spells.... On my four toons (screen 2) it shows all the toons around me dead, but on my main screen (toon 1) it shows all the toons alive and the screen as basically paused... then it "catches up" and shows them all dead....

Really confussed. not sure if it is a ISBoxer thing, figure I would start here since there are soem really smart peeps.

I did get the latest update for my video driver 4 days ago - it is for the ATI Radeon HD 5700... could this be the prob? It works fine with my other games.

[lax]

From what I've heard, this is caused by some out of date WoW Addons. Make sure all of your WoW Addons are up to date?

[MiRai]

Patch 4.1 brought internal changes to the game and how addons work. You can't just magically hit the "Load out of date addons" button and expect everything to be fine.
There are articles on numerous websites stating that this is especially true with any addon that has to do with the combat log.

the ONLY ad on I use in game is ISboxer... nothing else.

[MiRai]

the ONLY ad on I use in game is ISboxer... nothing else.

I believe you're the first person to report anything like this since 4.1 went live.

Does this happen in every instance? Even the ones you out gear? If so, take your team into an instance that you out gear and turn
off the ISBoxer addon to see if that changes anything. I suggest an instance that you out gear since w/o the addon enabled it's quite
difficult to control a full party of 5. I would also suggest that it isn't an instance where you can one shot everything since you say
this happens when you're spamming keys... it may be something that needs to "build up."

If anything you can rollback your video card driver through the Windows Control Panel. I am running nVidia cards myself so I can't
speak for how ATI drivers are, or were, acting.

Anything else like Crossfire being enabled, dual GPU video card, 2+ monitors hooked up to your system, or XFire could also lead to
a decrease in FPS.

I would also like to apologize for my earlier post. I re-read it now and I sound like a dick. I assure you that wasn't my intention.

I did correct it last night.... I rolled back the video drivers and it woreked fine... so just out of curiosity I reintsallalled the new video drivers again and this time it worked perfectly. No freakin clue what happened.

and no need to apologize but much appreciated.

Thanks for all your help.

Glad you got it figure it out, yeah seems like if i use 2 screens, 4 are on sepereta screen and 1 is on main, (5 chars) then the game lags, but if i put everything on 1 main monitor with 5 windows it wont lag at all, i need to figure that out what is it. something to do with windows/mode i guess.