Jagged lines on monitor with G400Max

[FrankS]

I just installed a G400Max on my PII/Win98 system and all works well... except when I'm in 1024x768 resolution on my primary. In which case, I get these jagged lines (e.g., a "straight" line of a document border will appear jagged - with a "row" of pixels pushed left or right just a smudge). Everything works great in other resolutions, and the problem seems to get better with a lower refresh rate, but it's still there and preventing me from using my favorite res...

Any suggestions?

Thanks,
Frank