After replacing one f the DDR module form 512 MB to 1 GB and switched of "User Account Control" (on Vista), all data from my Apache Derby disappear (I can connect to db, but the tables are empty).
Is it possible that, during the upgrades to your computer, you unintentionally changed your home directory, and so your old database is still present, but your program is now looking in a new home directory and so it's finding a fresh empty database?
Perhaps try a file system search and see if there are old files from before you performed the system maintenance? bryan
