Don't take the Mac to a repair shop. I don't see how that could turn out well financially.

I have had some experience with USB cards. OS 9 includes some USB drivers but they are wrong. You have to throw them away, and install USB Card Support from the separate installer. This usually works for me on Beige G3s.

Install the drivers and restart. If the card doesn't work then it's either incompatible or defective.

I have confirmed this several times:

- Install OS 9 (and any upgrades)

- Delete the USB extensions

- Install the USB card

- Install USB Card Support 1.4.1

If the card does not work, 100% of the time I can put in another card and it works. The original card was defective or incompatible.