I have heard of problems like this not being resolved by removing the cache file the first time. Please try this again and restart the machine afterwards, if this does not work for you try moving on to the next thing on the page listed by renaming the configuration folder. Here is another link to a post on the forum that covers these steps, they are also listed in the link that was provided in the first response.
showpost.php?p=12293&postcount=2
If you continue to experience problems after trying this let us know.