I am using a 1280x1024 LCD (HDMI out of RPi to DVI input on LCD). Vector games all appear to be running at a less that optimal resolution. How can I specify the resolution for vector games?

The best setting on an LCD for this would be to match the native resolution and then play with anti-aliasing. Any way for me to specify 1280x1024 for vector?

Perhaps it has something to do with my device_video_clock setting? It's probably more of an Advmame question than a PiPlay issue, but I am probably not alone with this challenge.