i have 3 of these and love them. paid a lot more than this. Dell Small Business has the Ultrasharp 1905FP 19" LCD for $529 - 40% off coupon 8KLZRXT4JNQW1N = $317 + tax w/ free shipping
It worked fine for me. I ordered two today. Maybe you are trying to add it to your cart via the home office store? I'm guessing. Make sure you go to dell and enter the small business store. Then find the monitor, add it to your cart and paste in the coupon and update. That's all I did and it worked like a charm. Two for 672 shipped with tax. Let me know if this helps.
Even better deal now....No tax + free shipping... $310 19in 1905FP Digital LCD Flat Panel 800:1 contrast ratio, 20ms response, DVI $529.00 - 30% off Code: QGG6H3LKWRNTL2 (Exp 3/31 5:59am CT) - $60 off Coupon code: NH0LZH?150MPVS (Exp 3/26 5:59am CT) = $310 shipped free. http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=320-4113