Intermittant issue with outlook and calendars

[bobmanuk]

I have office 2003 and am running outlook, The problem is when switching
between mail and calendar it can be very slow (up to 3 minutes) to switch or
view another users calendar.

I thought it may be a network issue but it isnt always the case as even when
starting it can take a long time to view even my own calendar.

It isnt in cached mode and the system spec is XP SP2 with 3gb ram... the
processor isnt being use much at the time of the slowdown. outlook spikes to
aprox 50% usage but nothing else is using the processor...

Any ideas?

thanks

Matty