Hi, I'm using Windows 7, a 2GB MicroSD drive connected to Win 7 built-in ReadyBoost and a 40GB ATA133 HDD via eBoostr. The problems are : when adding a new cache, if I typed the number for example 4000 for 4GB of cache instead of using the slider, the new cache will be 0 in size and if I tried to build the cache, it will go up to 300-400mb and then If I tried to delete it, the cache will increase in size instead, it would not be deleted unless I disable the cache first.