i connect a monitor the recuare a driver i did know and now i do not
have a image or picture and is stack in drive A the light is on all
the time and make the noise like is louding is not bootup ( but when i
loose picture a trait to put the bootup disk so i make worst ) i
apolige for my speeling Thanks Sergio Morales

Turn the computer on and press the f8 key while it is booting you'll
see a menu choose Safe Mode.In the Control Panel click system then
device manager.Click on either display adapter or monitor(whichever
you installed the new driver for)and click remove driver,then restart.

Thanks for your advice but the problem is, I cant see what Im doing. 
There is no picture to see that option.  Im stuck in the " A drive "
and it makes a noise like it's downloading something.  From there, it
doesnt advance...  It's stuck...   Im waiting for more answeres.
                    Thank you.
    Sergio

cencerro-ga:

If you mean that, after turning on the computer, you do not see a
picture and your Drive A: is constantly spinning with the light on,
then your computer's BIOS (the basic input/output system that controls
the basic functions of your PC) is having a problem. You may be able
to rectify this problem by unplugging the monitor and connecting a
different one, to see why the PC is not able to boot. Can I safely
presume that you have already removed any disk from Drive A:, if there
is a disk in there?

The above comment sounds good try a new monitor.

well i trait whit and whitout i put the reboot disk if she pick up but
nothing happen steel spining the drive A how i can reset the baios ? i
change the monitor orrery and nothing happens i change video card and
steel not get any picture thanks for you are help

There is a good possibility that your computer's BIOS has been
damaged, meaning that the computer will no longer boot. At this point,
the best advice for you to follow would be to bring the computer to a
computer repair shop so that a properly trained person can look at it
in person; this sort of problem cannot be easily solved through an
online forum.

Well yea i undestend but i steel won to try my self ,is jamm how can I
andu, ho change the mother board is stuck in the A drive and i do not
have a picyure so is not doin a reboot maibe take the battery off but
is locater in a dificul position i dont know can samebudy heip ne out 
Thanks

cencerro-ga:

Given your lack of experience with this type of problem, there just
are not any good things to suggest you try, other than to have a
qualified person take a look at the problem. Anything else will very
likely lead to the permanent failure of your PC. Please, bring it to a
technician. There is always the chance that this is all caused by
something that is easily repaired, but there is no way to determine
this and advise you accordingly through a text conversation such as
this.

Bring it to a technician.

Thanks Kentstar for you are information i take to the technician and
he dont came back to me yet but if i know this side befoare i will do
that now who know? he can tell me anything the i wos wrong and i don
have a choice i am learnen to do my self for the hard way but is a
lort of fan anyway you are the most interesting help thanks amigo

Perhaps an addon card is misbehaving (probably the graphics card)  or
the ram has become unseated somehow.

Try the following.

I suggest taking the cover off the PC, and removing all cards from the
workstation (if any), removing the RAM. Leave the computer plugged in
(but powered off. Place the removed components on the chassis of the
computer if possible, or on a piece of newspaper (I presume you wont
have static mats / bags). Then re-insert the memory, then the cards
one by one - Starting with the graphics card if applicable. Try to
power the machine on after inserting each card.

OR

Maybe your CPU has died ? When you power on the machine does the CPU fan spin ?

Hope this helps.

Tazzzie_-ga

Yes the fan spin ,yea i renove the ram and the video card and steel
not image maebe the motherboard when ,so now i am in the procces to
buy a motherboard and a cpu new thanks for U R answer

if you have a Windows XP boot disc put that into drive A:
Or contact a technican