Fixed it by myself changing the value in the table in SQL
Can you remember what the table was ?, as I'm in a similar position and not sure which table to start looking in
select * from tps_application_setting
where tps_value like '%Crystal%'
will return 2 lines
I changed the column "tps_value" from my 2nd result in editor and update the column in sql then
regards from Germany
You can also write a query in LDSD against system/application setting and pull back the same values. You can then write a window against the same object and edit those entries directly (or use notepad to extract/edt and put back). (This is handy if you don't have database access rights) You might start to think about other LDSD internal tables that could be useful to look at like system/message recipient, querytemplates and so on.