Originally posted by: ayabe
It may work but I don't see the logic in dropping $800 on a new monitor and running it on severely outdated hardware.
AMEN
I got an amazing Planar DVI monitor that runs natively at 1280x1024 for about $300 and that was a year ago.
When you run an LCD at non-standard (non-native) resolutions the effect is not pleasant. It's like viewing your image through about 1/2" of water.
The native resolution of the Dell 2405 is 1920x1200. Running it at a resolution lower that will result in this effect UNLESS your video drivers are able to display the lower-resolution image WITHOUT stretching, ie, black space all around the image - which is the same effect as buying a less expensive monitor.
If you're thinking that you'll buy it now and be ready for a hardware upgrade, realize that soon manufacturers will be needing to add HDCP ports to their monitors, which will drop the resale value of this monitor....and you won't be able to watch HDTV or HD DVD on this monitor.
So in essence, ayabe's got it right, I've just babbled on about it in detail because of the single word "why"