Incremental Backup still not working

Hello,

This new version i(4.1.2) is still doing Full Backup instead of incremental:

13.05.2012 13:33:14 Running custom profile C_inc_files|DATE1||REVISION_NO_MAX09|.cbu
13.05.2012 13:33:14 Creating New Backup…
13.05.2012 13:33:14 Cannot find a backup base. Defaulting to full backup.
13.05.2012 13:33:14 Creating full backup “G:\ALAIN-DESKTOP\C_inc_files13_05_2012REV_NO_0000000002.cbu”