There are two panels that need to be set properly for At Ease to prevent the user from accessing the hard drive from the Open or Save dialog boxes. In this case the Security Panel is not set correctly. Follow these steps to allow users to only save and/or open documents from a floppy disk:
Locations Panel
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Step 1
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Launch At Ease Setup, open the Setup in which this problem is occurring.
Step 2
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Click the Disk Icon button to go to the Locations Panel.
Step 3
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In the second section:
Store user documents on:
[_] Setup location volume [_] Floppy Disk
Click the box to put an x in the Floppy Disk section to store the users documents on a floppy disk.
Security Panel
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Step 1
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Click the Padlock button to go to the Security Panel.
Step 2
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In the first section:
For new documents, users are required to use their At Ease Documents folder to:
[_] Open [_] Save
Click the box to put an x in the Open section if you want your users to only be able to open documents from a floppy disk. Click the box to put an x in the Save section if you want your users to only be able to save documents to a floppy disk.
Having both Open and Save selected are the default settings, so they must have been changed in order for the problem you were experiencing to have occurred.