Is your release of PCLinuxOS still using Grub Legacy? If so, you should have a #hiddenmenu entry line in menu.lst. If you don't, put it in just below the timeout entry. Remove the hash mark (#) from the line and you won't see the menu. If you leave the timeout at 10 or whatever you have it set to, it will boot to the default after that time. Or you can hit the Enter key to boot the default immediately. You would need to know which entry in the menu your windows install is so that if it is the third entry, you would hit the arrow key twice at boot to get to the third entry (windows). There might be a better way to do this but, I can't think of anything off hand.
I tested this on PCLinuxOS with menu.lst and it does not work. The menu is hidden but a message shows saying hit the Esc key to see the menu which defeats your purpose. There is a countdown and if no action is taken, it boots the default entry. Maybe someone else will come up with something.
If you have Grub2, making the changes will use different files.
Last edited by yancek; 03-01-2013 at 07:40 PM.