I would like to buy my husband a 30" ACD for our anniversary. However, he has a 15" Powerbook. From the research I've done on the MR Guides, it seems to be a Revision B (purchased May 14, 2004). There is some doubt as to whether this PowerBook can run the 30" ACD at maximum superhigh resolution. I have searched here (and MRoogle) and checked the Apple specifications website, and not found a definitive answer. Instead, I found some posts saying that only the newest Powerbooks (and the MBP) can do this; on the other hand, I also found some posts saying all that is needed is the ATI Mobility Radeon 9700. We also asked at our Apple store twice, and received different answers each time (the first time "yes, definitely", the second time "no, it only has 128 MB VRAM and doesn't have dual-link DVI" from the Apple Genius (we did not have the laptop with us on either visit)). The Apple specifications don't say that the connector is dual-link DVI, but the connector on the right-hand side of the computer looks (to us) like the one described as "DVI-I (Dual Link)" on Wikipedia. I hate to post new threads, so please be kind, but since Macrumors is so great, I was hoping that you could help us decide for sure whether this will work. This Powerbook is 1.5 GHz. It has the extra 128 MB VRAM, and 2 GB regular RAM (if that matters). When he checks the "About this Mac" dialog, it says under "Graphics": "ATI Mobility Radeon 9700". We don't want to buy it and then bring it home and find out it is not fully supported, and then be stuck with the restocking fee. Has someone here used this version of the PB with the 30" ACD at full resolution? Or do you know for sure if it is possible? I didn't consider asking the Apple store whether we could bring it in and hook it up to one of their ACDs in person until after we had gone home and the store was closed. The computer is here, so please let me know if I need to provide more information. Thanks so much for any help!