Problems With DirectX 9.0b

I get error messages when changing channels with the ATI TV Tuner, MMC 7.0
after installing DirectX 9.0b in Windows 98 from the Microsoft Windows
Update website.

I am using the All-In-Wonder Radeon card, and original drivers and software
from the ATI CD that came with it. DirectX 7.0 is automatically installed
from the original ATI installation disk. After a clean Windows 98
installation, and installation of sound drivers and ATI drivers and software
installation, everything works OK, but I would like to be able to update to
DirectX 9.0 or current version if possible without any problems.

I do not want to use newer ATI drivers/MMC because the DVD player hangs with
later versions in Windows 98.

This issue is not covered anywhere on the ATI web site.

Any suggestions?

Thanks, Kevin