I am using CardBackup on two T3 PDA's with the same programming on both PDA's. The program works flawlessly on both units EXCEPT when I use the scheduled backup function on one of the PDA's. On one, the scheduled backup works fine. On the other, I get a message that the backup function is being blocked by another scheduled application, and the backup fails. All other commands in CardBackup work on this same PDA. I have no alarms set, and have no difference in programming in these two PDA's. Anybody have any ideas as to what might be blocking the scheduling in the one unit? Any ideas as to how to cure the problem? Thanks.