We had some issues with the patcher on our last update... I have fixed these and will be doing a new patcher upload at some point today (just putting it through a high level of testing, as I really don't want anything to go wrong with the patcher).
If your interested in the issue:
The original patcher (credit to jamie as its the C# patcher he released and helped us with), would zip up the individual client libraries in memory (so you do not end up with a physical zip file, its stored in your memory), this method is fine as long as you do not encounter two issues, one being, a really large file that consumes all of your memory (cbohum3), and two being, a user with really low memory lol.
The new patcher physically downloads a zip, extracts it where it needs to go and finally cleans up the zip... The latest patcher is also capable of being auto updated (finally)...
Sorry for the inconvenience.
Sam