Yes, you can. In fact, I've done it myself. :-D Before anybody gets mad at me, and or storms my door to rob me, I was just borrowing my boss's display. Managed to hang on to it for a week or two before he wanted it back though. ;-) Anyway, you need the Apple DVI to ADC adapter - they've dropped the price to $99, which isn't so bad. Dr. Bott has a similar product, the DVIator, which is about the same price. I've only used the Apple one, but it worked extremely well. I haven't read their website too carefully, but I saw some mentions at Dr. Bott that there were problems with certain video card/OS/display size/resolution combinations. Here's Apple's description of the DVI to ADC adapter, including a compatibility chart (PowerBooks work with any of the Apple monitors, some desktop video cards may not): http://www.apple.com/displays/adapter.html I should warn you though: the resolution on the 23" HD is so high that DVDs start to look pretty bad if you're close enough. Of course, it varies with the movie, as different DVDs have different compression ratios, generally governed by how much stuff they wanted to put on one disk. Good luck! And, as payment for my invaluable advice, I expect a 23" display of my own to arrive in the mail... ;-) I'll buy my own adapter if that ever happens. David DelMonte <ddelmonte at mac.com> writes: > Can anyone advise on whether I can connect my Apple 23" HD Monitor to > my AlPB Powerbook 17"? > > What adapter is required and will I be able to use extended desktop > mode - so that I can use both screens?