I uninstalled and then reinstalled the app from the market, and it works now. I'm getting the message about access control, but I'm not really sure what that is so it's not really important to me. As long as I can connect my computer to it, which I now can.
well i was getting same error.. i went to the wifi tethers Dev site from the market and i manually downloaded the latest version 2.0.6 and everything is back to working..
heads up: i also tried the 3ghotspot patch and it worked however it messed up screen resolution and made EVERYTHING huge on my screen.. i even tried unpatching and it didnt fix. i had to wipe/factory reset and reflash liberty so from my expierience i WOULD NOT use the TBH patch