i saw this on Gabe's computer:sheep:
so i make a 800x600 for 1.3 here (http://home.pchome.com.tw/net/poison1209/Source_Background.zip)

extract the BACKGROUND folder to ...\day of defeat\dod\resource\

http://home.pchome.com.tw/net/poison1209/GabeDOD.jpg

the 3204 splashscreen is loading from
http://www.shacknews.com/images/image-o-matic.x?dod_source/091505_dod_source_04.jpg