Just a small caveat if you are think of taking up Humyo.com's offer of 30BG free online storage. The web-based access  seems OK (though note that 25GByte of the storage used has to be multimedia files) but I hit a slight snag when trying out the PC client, which addresses the online storage as another drive. This is assigned the letter H by default.
Everything worked fine until I plugged a flash drive into a hub attached by XP machine. It registered the drive but I couldn't access it until I closed the Humyo link. The flash drive then listed happily when addressed as H.
By this time I had forgotten that I was editing a document stored on the Humyo drive. All was well until I tried to save it, when Word crashed and lost my document with a day's work on it. Happily I was able to retrieve it by cannibalising two tmp files.  This was not Humyo's fault but it does show the pitfalls of working directly from remote storage: best work from a local copy if there is any chance of your link going down.
The original error may have arisen because XP assigned the hub a set of drive letters before anything was plugged in. Humyo is trying to reproduce the error, and will produce a fix if necessary. It should not stop you from using Humyo, so long as you are aware of it.