Programs Disappeared

I installed many of my programs on my memory card and they worked just fine, but yesterday they disappeared and when I attempt to launch them, I get the error message, "The xxx file cannot be opened. Either it is not signed with a trusted certificate, or one of its components cannot be found. You might need to reinstall or restore this file."

Is there anyway to get them back without reinstalling?
Any idea how this happened? Can it be prevented?

Thanks for any advice!!!

[CozBoogie]

Start with a soft reset.
What programs are they specifically? If you are running a program that has a Today Screen plug-in you need to install that on the device...not the card. Games and such work well on your card.

I would ultimately unistall and then reinstall your programs and put most of them on your device (depending on program).

Hope this helps...

late,
Coz

I did that and they still did not show. The programs are on the card, they just don't show in the program menus.

PocketInformant
Flexmail
PocketBible
PocketBreeze
MemMaid
SpbFinance
TapText
Vito AudioNotes

Thanks for your advice!