24khz on my Nanao MS9-29A

[ken_cinder]

My Nanao MS9-29A is a dual mode monitor (15khz/24khz) with auto detection.

I have a problem with 24khz I can't figure out. I'm running a PC for MAME etc, using a Radeon 8500 for a video card. 15khz works perfectly, but 24khz does not.

24khz modes display without rolling, but it appears as if there are vertically 4 overlapped fuzzy images onscreen at the same time. I can't figure out what is causing it, if it's a limitation of the video card (It SHOULD do 24khz) or if it just doesn't like the modelines I'm using.

I'm using a little app called "Soft15khz" to enable these modes, and I can put in user modelines, but I'm kind of lost as to the cause of this 4 ghosted overlapped images thing. Can anyone with knowledge of this, that may know what causes that, tell me what the problem is?

[ken_cinder]

Yet another topic where my post was kind of wasteful.

I figured it out, seperate H hold pots for 15k and 24k. A fellow on Arcadecontrols forum kindly tried to help me figure it out, only the only thing to figure out was my own oversight on something that otherwise was working fine.