So by accident, one of my colleagues discovered that if you wiggle your
mouse while you're debugging, everything works normally! I tried it on
my computer, and guess what! He was right! Near instantaneous
response, just the way it used to be in VS 2003!
I have two theories to explain this phenomenon:
1) VS 2005 is so high powered that normal mains power is insufficient
for debugging mode and you need to generate a little extra kinetic
energy from the mouse to make it run at a decent speed.
2) Somebody in MS really screwed up the event processing management in
debug mode.
Eagerly awaiting the hotfix for this bug...
:)
Shaul