Here's a description of a problem encountered when changing from one storage media to another. Thanks christgj ! Install/Uninstall procedures I downloaded version 0.3, removed previous version and installed to default location in RAM using Cabinstl -- Try to run and immediately get an error. "An unexpected error ... in FeederReaderCF.exe...Quit and restart or select Details... Details: FeederReaderCF.exe MissingMethodException MainForm::.ctor+0x9c MainForm::Main+oxa" "MissingMethodException" occurs when it can't find an expected .dll. This might occur, for instance, if it can't find a dll in OpenNETCF. I uninstalled everything again and reinstalled the old versions (v0.2 and OpenNETCF) -- didn't work... so I uninstalled everything again and took a look in the registry -- FeederReader and OpenNetCF keys were still present in several areas... I remembered that the previous reinstalls that I had done were always changing from SD to RAM (or vice-versa) -- so, though I was tempted to just "blow away" all registry keys relating to FR and OpenNetCF, I decided to reinstall (v0.3) to SD (instead of RAM) -- that worked!! It apparently straightened out the registry and the FR is working on my SD card now. I also think the "remove program" does not for some reason clean out the Program Files directory.