Lost data - Apache Derby Problem

[Mariusz Wojcieski]

Hi,
First of all sorry for my English.
This is my problem:
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 there any 
way to recover the data?

Thanks,
Mariusz