Yes. Like Netscape, some configuration of Opera is needed before it can be used with Webcelerate Accelerator. for details on configuring Netscape; many of these apply to Opera. The following Opera-specific instructions were contributed by a Webcelerate Accelerator user:

1. Click on the Opera File menu.
2. Select Preferences...
3. Click on the label for the Network category (the fourth from last choice)
4. Click the button labeled "Proxy Servers."
5. Make sure that the "Use Automatic Proxy Configuration" checkbox at the bottom is unchecked.
6. Check the "HTTP" checkbox at the top. Leave the checkboxes for the other listed protocols (HTTPS, FTP, etc.) unchanged.
   
   Important: If HTTP Proxy Configuration is already selected, make note of any proxy address and port number in use. You will need to restore this information whenever you stop Propel Accelerator.
   
7. In the HTTP Proxy area enter "localhost" (without quotation marks).
8. In the Port area enter the Propel Accelerator port number (by default 8080, but this number may be different on your system. for instructions on verifying the Webcelerate Accelerator HTTP proxy port number). The first line of the dialog box should look like [check] HTTP [localhost] Port [8080].
9. Click OK.