I feel your frustration!
I have the same problem on 2 Dell workstations, a Dell Vostro laptop & an HP desktop at work. All running XP Pro. and ZA 9.1.008.000. The owner is ready to dump it and try something new.
I have also noticed a long delay in the desktop loading on my home pc's & laptops.
I did find that if I wait long enough sometimes the desktop loads. I also found that bringing up task manager by ctrl+alt+del and logging off then back on brings back the desktop.
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