Dell Axim X51 - Manual (Page 127)

Maintenance and Troubleshooting 127
File Download Security Warning
The following File Download Security Warning message appears when
attempting to install software programs on your Dell system running
Microsoft
®
Window
®
XP Service Pack 2 (SP2).
As a safety precaution, the File Download Security Warning appears
whenever you attempt to install a software program on your system.
This occurs regardless of who makes the software you are attempting to
install.
NOTE:
This warning does not indicate a problem with your Dell system.