Upgraded all ports, now slow and unresponsive X

[caravel]

Running FreeBSD 8.3

I did

# portsnap fetch
# portsnap extract

# portmanager -l -u

Which took several hours

The result is that everything works except xorg is extremely slow and unresponsive in both xfce and openbox. I can type text in a web browser or open a program and there is obvious delay - moving the mouse causes all the text to appear at once or the opened program to appear suddenly.

So I tried the nv driver instead of the nvidia driver - no change.

I then decided to remove and reinstall xorg, xserver and drivers - no change.

I also removed and rebuilt cairo - no change. (I did this based on personal experience with libcairo bugs in linux)

I did all of this from the ports tree using

# cd /directory/for/port
# make deinstall
# make rmconfig
# make clean install

Also I had added the following to /etc/rc.conf

hald_enable="YES"
dbus_enable="YES"

And this had been working fine, now after upgrade I once again need a mouse section in xorg.conf.

Any help or advice much appreciated.