World of Warcraft frame rate cap with Core 2 Duo

Forgive me if this has been discussed somewhere else, but I didn't come up with anything during a search...

Is anyone else experiencing a frame rate cap in WOW on a Core 2 Duo machine? Mine will sometimes cap out at either 60fps or stay at 64.1fps. My rig is listed in my signature.

The really weird thing is that the cap sometimes doesn't occur. Occasionally when I log in, I can get up to 128fps when nothing else is going on (like standing next to a wall). I can even get in the 60's in IF near the AH, which would slow me to a crawl on my old system. In AV, I was getting in the mid 70's. However, for reasons unknown, the frame rate will suddenly get capped at 60 or 64.1, sometimes in the middle of a session. Restarting WOW has no effect on this.

I've checked all the normal stuff. Vert sync is turned off, etc. For reference, I'm in 1600x1200, 75hz, everything maxed out (glow, vsync, and level of detail turned off). I've read about a problem that Blizzard had with this that was supposedly fixed in the 1.12 patch. And, like I said, sometimes I get 120+ frame rates, while other times I get this annoying cap.

I can't get on the WOW forums, guess they're down (as usual), so I don't know if there's been a discussion on this.

Any insight would be appreciated

It's been a while since I've played so I can't check for you, but just to throw it out there, try disabling Vsync if it's an option for WoW.

"Computer games often allow vertical synchronization as an option, but is sometimes disabled because it has the effect of limiting frame rates to the monitor's refresh frequency creating a psychological disadvantage although not a visible one." - Wikipedia, vsync

Open windows media player why? Also its a known issue by blizzard that dual cores max out at 64 fps. They've posted it somewhere on their website.

go w/ a core 2 duo anyways because even thought your capped at 60fps it'll probably never go much lower and blizzard will probably fix this eventually

Yeah I can also confirm it caps at 60. Core 2 Duo E6600 with 8800 GTX. But does it really matter if it goes above this? Bigger issues in life then going above 60 FPS in WoW.

i have a 6300 OC'd to 2.7 as well as a 1950GT, and it caps at 60 as well... no idea why.... 2gigs ram, etc...

I just hit 580fps while in flight in wow with all settings maxed and vsync off, im using a 9550 intel 790i mb 2 4870x2's in xfire and raided 150gb velociraptors...yet I still cant get over 22fps in crysis with all high settings