Hi just a quick question. I am re-installing vista, I boot from disk then follow all the on screen instructions, by using the tab key, type in the validation code, which is all well and good. Then I have to mouse click in a box, which I can not do as my motherboard only has one ps2 port, I have my keyboard in that and my mouse is USB, which as you know will not work, What I would like to know is, is it ok to take out my plug and plug in a ps2 mouse while the computer is powered on. Thanks for any advice