Best video card for Mame and Scan Converter question (please help)

[deadpool18]

I have a 4:3, 27" High Definition CRT TV with Component in.  I'm using a scan Converter with an old ATI All in Wonder card.  I'm having some graphical issues with certain games (rolling lines that don't appear when displaying on a computer monitor through VGA).  An example would be Hamster Ball, where the tv will have a line roll down the screen every now and then (doesn't happen on the monitor).  For some reason, this drives me crazy!!!

But, I love the vibrancy of the color and the overall image quality using Component in rather than just running an s-video cable directly from the ATI card.  So...

Should I just buy a new video card with component out and forget about the scan converter (I paid $100 for it!) or is there a way of preventing the problem?  Some games work perfectly fine, while others (like Hamster Ball) have the line issue every time.

If I buy a new video card, which one should I buy? (must have component out)  I'm only looking to use it for mame and other emulators, and the occasional arcade style pc game (like Hamster Ball).

Any advice or help would be most appreciated!!!!  Ideally, I'd like to magically fix the problem with the scan converter, but if not I guess I'll buy a new card...

[AlexKidd]

I had a lot of problems with the scan converter built into my CRT TV/presentation monitor. The monitor has a VGA input that goes through a scan converter to convert whatever resolution the computer was outputting into the native resolution of the screen which is 800x600. I wasn't getting the hampster ball effect. I was getting a problem with some of the games that create partial transparency by flashing things on and off the screen quickly. The scan converter would affect the framerate and redraw in such a way that the graphics on the screen that were flashing would become invisible.
Luckily for me my monitor also had another VGA input that didn't go through the built in scan converter so I could just have my computer output the native resolution of the monitor. That gave me a nice clean picture with not problems.
I don't know if this helps any other then as an example of some of the problems with scan converters and mame.

[deadpool18]

Thanks, sometimes I get the invisible transparency thing too!  Anyone else have any advice?

How about a video card suggestion?

[ahofle]

You can also try enabling the 'triple buffer' option in MAME.  That eliminates the screen tearing at the expense of some very minor 'jerkiness'.