4 bugs in Compaq Presario X1007EA

I've got a Compaq Presario X1007EA and after reinstalling Windows XP HE
everything works fine except 4 irritating bugs(?):

1/ When Windows starts, the Taskbar only shows wwhat it feels like showing.
It happends (rarely!) that every program/service that starts with Windows
shows an icon in the tray area, just as they should. But more often only a
few of them appears. The rest is invisible (but the service/program is
running).

2/ Not so often, but also after booting up, the keyboard is totaally dead.
Everything works as it should, except for the keyboard. After a reset it
works again.

3/ And sometimes, as now wwhen I aam typing this, the keystrokes generate
ddouble letters. (And it makes me more crrazy then I already am!!!)

4/ When I get a dialog window as in Office when choosing Printer or Settings
or something else that ggenerates a dialog window, it places itself UNDER
the main window/program. I have to minimize it to get to it.

Does anybody recognise the symptoms?

What is wwrong?

I have installed the latest patches and updates both from Compaq and
Microsoft.

Is it posssible that Service Pack 2 for XP can cure it?

Roger, Sweden