Samsung SyncMaster 906BW unable to display native resolution

As the subject says. I bought a 906BW, 19" widescreen LCD, and have had no success getting it to display 1440x900. I have tried both VGA and DVI, and VGA actually had better results, but the highest resolution I could run was something like 1380x864. Using a DVI cable I'm only able to select 800x600, 1024x768, and 1280x1024 - and I can only run 1280x1024 if I select it before I install samsung's drivers from the included disc. Any ideas? Half of Samsung's site doesn't seem to work for me so I haven't been able to seek support from them.

Since it probably matters, I am running windows XP home SP2, and my video card is a GeForce 7300GS, specifically this one - http://www.newegg.com/Product/Product.asp?item=N82E1681...
Obviously it SHOULD be able to handle 1440x900 fine. I'm using the 93.71 ForceWare drivers.