I've played GW since it's release 2 years ago, and have never experienced low FPS - all video options on high, and ive never,ever been below 30 FPS. However, since I bought EotN yesterday, my FPS is regularly 10-15.. (15 @ best, usually hovers at 10 though), and pretty much a slideshow in towns (all this happening in EotN).
My specs are:
AMD Athlon(tm) 64 Processor
3200+
2.01GHz, 1GB of RAM
Radeon 9800 PRO
Now as you can see, my computer far exceeds the recommended specs, and I don't think I should have to lower the video options to get a playable FPS, when it's been fine for the past 2 years.

Has anyone else had this problem and managed to solve it?
Thanks for any ideas/input!