Belkin USB cards have been fingered in various forums as unreliable in Beige (Old World) Macs. You have used OS9Helper to get 9.2.2 on your 7600, which is why the Old World Support 1.0.1 appears in your splash screen at startup. See whether another (any other) brand of card gives you joy, but also make sure that you have the latest software from Apple, either separately installed or as part of OS 9.2.2.
The card may have needed to be already in place for OS 9.2.2 Installer to 'see' it and install the half-dozen extensions (and CP) needed. You can use ASP or Extensions Manager to see what USB software is installed at the moment.
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The card may have needed to be already in place for OS 9.2.2 Installer to 'see' it and install the half-dozen extensions (and CP) needed. You can use ASP or Extensions Manager to see what USB software is installed at the moment.
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