Please know the .cab I posted above has this fix applied to it and should work. You should uninstall Groovefish, then install the new one. It has the same verion number as the one in the original thread at XDA but has been modified with this fix. If that doesn't work, you can try this:
Try this manually:
its the .dll file inside of the zip that
tx_jaycee posted in post #43
just download the zip file - unzip it - and replace the Groovefish.Web.dll thats in the Groovefish directory in your phone with the one thats inside the zip file that tx jaycee posted
http://forum.ppcgeeks.com/showthread.php?p=1290770
post # 43