Originally Posted by JSWolf
.6GB is reserved for system stuff otherwise the user would have the full 2GB to play with.
But, I wonder if that counts the search indexes. It may just be the operation files. The index may still need room in addition to the .6GB.
It also could be that indexing takes up extra work space. I know alot of times for stuff like the many db engines use extra diskspace as work area... then it is released when the job is done.