Mark, the troubling part here is that the older MobileMe version of your iDisk claims to be one byte of data. Don't pick that version.
It looks like you've reproduced the iDisk syncing problem; if you open up console.app, are there any messages that look related to the sync process?
We have a pretty good handle on *what* is happening here - iDisk gets confused and blows away your data; this makes it look like it's happening on the iDisk servers.
The next step is to figure out *why* this is happening so we can work around the problem. Any messages in your console log might help us do that.
(I also responded to the support ticket you sent in - if there is console info, please send it via email.)
It looks like you've reproduced the iDisk syncing problem; if you open up console.app, are there any messages that look related to the sync process?
We have a pretty good handle on *what* is happening here - iDisk gets confused and blows away your data; this makes it look like it's happening on the iDisk servers.
The next step is to figure out *why* this is happening so we can work around the problem. Any messages in your console log might help us do that.
(I also responded to the support ticket you sent in - if there is console info, please send it via email.)