Vista - Resume Loader

While restarting my computer from hibernate state, I received the Resume
Loader Page with two options: Resume or Restart. Unfortunately the enter
command would not work from my PS2 keyboard, therefore I could not select an
option. The up down keys worked but not the enter. I tried using the Vista
installation disk to boot/restore but that just put me back into the resume
loader page. The enter key worked in teh Bios Setup and as the "Press any
key to boot from CD" key. I finally used my motherboard install disk, which
is bootable, and that allowed the enter key to work so that I could start
the machine.

Can anyone please tell me a way to get around this in the future without
resetting the CMOS and reloading the Bios?

Thank you

Jim