Frustrated? You? C'mon der Taz, just put on Maube and get to klompin' high end a bit!!
And ya wanna know sumtin' about lag? Two things-
1- Make sure ya have 1 gig of RAM! Makes a HUGE difference.
2- Turn down yer graphics settings! (I know I might be pelted fer this one, since peeps like to play at 1600 * 1200 at 800 billion colors to show off their vid cards:) I run an old 1.4 Ghz AMD TBird- about as old a CPU as you can find, but I run it at the lowest vid settings at 800 * 600 resolution. Honestly, it looks fine to me. I did this months ago when Muru was pvping, cuz who cares how far ya can see the horizon in Durotar when ya runnin' at 2.3 FPS:)
Now, I have virtually no lag anywhere.