Version 0.208 is out, please update to this version, it has fixes for pre-fetching, caching, and saving that may cause incorrect songs to be played.

You may want to clear your cache directory if you notice incorrect songs are being played:
Vista/7:
C:\Users\[your username]\AppData\Local\GrooveWalrus
Xp:
C:\Documents and Settings\[your username]\Local Configuration\Program Data\GrooveWalrus

Additionally, if you have the 'Automatically save new music to your collection' option enabled, you should go to the Song Collection directory and delete any files you want to have re-downloaded (deleteing the cache and then the file from your collection will re-download the file the next time it's played or pre-fetched).

- added: option to disable/enable pre-fetching on Options > Music Stream tab has been added
- fixed: character encoding problem introduced in previous version that caused GW no to load
- changed: disabled 'Alternate Grooveshark source', will remove it from the options next build if there are no complaints
- fixed: pre-fetch error that named the pre-fetch song as the currently playing song