did you install the update?
http://www.tetraedge.com/faqatlantis.htm
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> FOR USERS OF SOME NEW Windows mobile 5 device : This upgrade for the V1.3 ONLY, make it works on any WM05 device. Just replace the olds files by the new ones. Download the Zip file here.
dont have a WM5 device myself so not sure...
Darrin