Strange behaviour with imported docs

[UltraUser]

Hello,

First off, thanks and kudos for the new release!

Now, I'm having a strange behaviour when importing documents (e.g.: MS-Word or MS-Excel files) into UR. Here's how it goes:

1) I import a document (either via drag & drop or the "Import" menu).
2) The document is imported in "Imported Items" which is fine. Contents are stored in UR. That's fine too.
3) I click on the item and I can read the textual content of it in the main tab. That's weird and new to me. With previous version, I just had a white space with a link saying "Click here to open stored document". Now, I can read a kind of textual representation of the actual contents (no format, just continuous ascii text). Not particularly useful, but I can do with it. Trouble is that this behaviour is not consistent. Let's continue.
4) Now, I open the stored document using CTRL+J. It opens fine as it was stored (with format, formulas, everything). I can save it if I want to.
5) Back to UR. Changing the selected item will prompt a save for the edited item, all fine.
6) Now, if I select the document item again, the textual contents has disappeared! I'm back to the white page with "Click here to open stored document"!!!
7) Let's close UR, and reopen it. I'm back to the edited document item. Textual contents has reappeared!!!!

So, is this "textual" representation new to UR 3? If so, why is it keep disappearing / appearing again? Or is there something wrong with my setup (XP Pro SP2 English, UR v3.0.1 installed as new setup, not over v2.0, the database is a new one, I haven't imported my previous one yet)?

Thanks in advance for your help and answers.

Cheers,
David