Safari on my 2.16ghz c2d Macbook has ground to a halt all of a sudden. Takes around 30/40 seconds to change between pages on the Forums here, for example. I thought this might just be a Safari 4 bug, but having the same (in fact slightly worse) experience with firefox. Odd thing is that my iPhone, on the same wirelss network is performing at normal (IE MUCH faster) speeds. Running 10.5.7, no new apps, downloads or plug-ins, and I've reset safari & rebooted. Even repaired disk permissions. No improvement. Helpful suggestions? Anyone?