Keystrokes To Change Default Screen To Ext. Monitor

My VPR Matrix (XP Home) Notebook's screen can ONLY be seen in the sunlight--but even then it is nearly impossible to see! What I want to do is view the computer on my external monitor, so I can transfer some files to another computer--but I can't see to change the settings. Can this be done just using 'keystrokes' or is there some other way?FYI: I bought this computer from BestBuy. It was quite expensive in 2003. recently, I brought it back to have it repaired. The Geek Squad wrote up a work order and charged me a $238.00 non-refundable deposit (as the warranty was no longer in effect). They told me they'd have to send it to California to be repaired.