It sounds like you are waiting for the cursor before pressing F10. You should press F10 as soon as you see the Compaq logo and text.
It's can't access the BIOS in my computer! It's and old Compaq Presario modell 8455EA. I have search the net and found out that this is a typically problem with Compaq computers. But, it can't be impossible, or?!
When I start the computer I first press ESC to se the Compaq logo and the text below on the screen "Press F10 for Setup" I do, then I read somewhere that you should wait untill a cursor flash in the left upper corner and then press F10. Despite all this there is no access to BIOS, XP starts almost immediate! I need to access the BIOS si I can uppgrade the memory.
I appreciate if someone know more about this and could help me?