I just updated to the most recent CRT_emudriver 1.2b and groovyUME .155. I can't get a picture on my billabs monitor, although I can on my old Dell pc crt monitor when I set the resolution to 640x480 @ 31.5khz. My monitor, a bl25c90t (wei-yea m31 series), is supposed to be able to handle that resolution, but I only get a screen like in the first picture (img_4998). I can see the screen rolling a bit, and I've tried adjusting both vertical and horizontal hold with no luck. You can see in the other pictures that I use the d-sub on the back of the monitor and use a DVI-VGA adapter on the PC.
Here are my PC specs:
Biostar BIOSTAR H61MGC
Intel G860 celeron 3.0Ghz
AMD Radeon HD4350 (I'm not sure which brand. I bought it from ebay in Jan 2013)
Windows XP x64 edition
I had things working before with CRT_emudriver 1.2 and groovyUME .152 on a Sony PVM monitor, but I can't get things to work on this arcade monitor. Please help!