start menu disappears

[Guest]

my pc works fine apart from when i click on the start button the menu
sometimes disappears for no apparent reason. sometimes i need to click on the
start button several times because it keeps on just disappearing every time,
usually within a split second, sometimes after a few seconds.

after a few attempts, the start menu remains. i am running windows XP home
with SP2. does anyone have any ideas what might be causing this frustrating
problem?

i have done a virus scan and anti spam check, and there are no viruses or
spam. so not sure what else could be causing the problem.

thanks

 

[Guest]

Does this happen all of the time or just right after you reboot it? I've
seen this happen quite a bit right after a reboot/login where the machine is
still trying to load everything.

 

[Guest]

it usually only happens much later, usually just after i disconnect from the
internet and just before i switch off my pc. Here's the sequence of events:

when i have finished on my pc, i close all programmes/window browser
windows, then i disconnect from the internet, then i click on the start
button, and it's usually at that point that it does its disappearing trick
(and usually three or four times). this means i have to click the start
button a few times before the menu stays there long enough to allow me to
then click "Turn Off Computer".