I just noticed something, I'm not sure if it'll give insight into the problem but it may. I have the black background and I'm unable to actually change my resolution, but...
The game claims it's using 1024 x 768 (full screen) ... but it's not. The mouse pointer reveals the edge of the playscreen to be an odd resolution. At first I thought maybe it was 960 x 600 (the next lowest), but no.
I think it's trying to run 1024 x 600. The height is clearly less than fullscreen 768, looks like 600, but the width covers all the way side-to-side, so it's 1024. So if we could just get an actual config file to edit, maybe I could tell it to use a real resolution instead of this crazy made-up broken resolution!! Please give more insight into this!!