Two weeks ago - after taking it abroad by car - my computer didn't startup
anymore.
Initially, I thought there was something wrong with the HD.
I could startup from the CD, and reinstalling WindowsXP and Excel+Word
(2003)
(and many other things) brought my system back to live, but it's behaviour
has changed.

Each time I load Excel, it starts by opening a window "Installing components
for Microsoft Excel"
and "Installing Microsoft Excel feature".
If I interupt this with "Cancel", Excel loads without further problem...

Why ? What is wrong ?