I followed everything correctly following the guide:
http://maldotex.blogspot.de/2012/10/maldohd-40-beta.html#comment-form

I tried recommended fix here:
http://www.gamesas.com/forums/topic40086

But the game still launches in a tiny window:


Is there a fix for this? When I go into Graphic options, I get "Undefined" under Resolution options. Desktop shows as 1920X1080p

Otherwise I'll just delete the mod from my HD.

Thanks

P.S The game worked fine before I installed the mod.