I get a white screen when i start directly from cartridge and a gray one when starting from BIOs. I am using 2.6a package with Zoomer. I don't know if it's my antivirus blocking it or something but it never used to do anything like that. It does not start for any ROM I have. I disabled AVG and it worked. I guess avg was blocking it without my knowledge since I would allow it access when it popped up.