What Wim is suggesting is to put your hard drive into another computer
as a secondary drive so you can back up your data, then put it back
into your 1420 and do a format-reinstall. This is not replacing the
hard drive, but instead putting it into a working computer so you can
get the data. Based on what you describe that is probably the best
plan.
If you have not already done so you can run the Dell diagnostics to
check for any hardware problems. There are a couple of ways this can
be done. One is to press F12 at the Dell splash screen (just after
powering on) and then selecting the Onboard Diagnostics option.
Another is to boot from the Dell Resource (aka Drives & Utilities) CD,
which will run the diagnostics as well. Once in the diags, you can run
individual tests or everything in one go. If it gives any errors we can
go from there to try and determine what has failed.
If you have, or know someone who has, another 1420 you can try swapping
hard drives to see if the problem stays with your computer or follows
the hard drive to the other system. This is another good way to narrow
down exactly where the problem is (if it stays on your system it is not
software or the drive).
One last option would be to try booting from a linux LiveCD just to see
if it has problems as well. While this does nothing to determine what
is wrong in Windows, it does help rule out hardware being the problem.
Also, assuming hardware is OK, you might be able to use the linux
environment to back up your data (most linux installations can read
from Windows partitions, although I have not tried this with Vista, so
I don't know for sure if it will work yet).
If you have other questions about the system I will be more than happy
to answer them.
Larry
Dell Customer Advocate
--
DellCA
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