Does anyone know what this error is with NetFront 3.0 "Emul68KCommon.c. Line 1683, Entry already in use"?

I purchased a Sony WL110 card for my Clie NX80V handheld. After configuring it, I find that I can connect, but as soon as I click on a link on a website, this error comes up: "Emul68KCommon.c. Line 1683, Entry already in use". Does anyone have an idea what this is and how to tackle it? Thank you