>>>I just updated to the latest version of Chrome (7.0.517.4). So far it looks more 'normal' now with UT in it (before, the replies in your Inbox are not visible), except for this - one cannot resize the four different regions (left, right, middle upper, middle lower). Hovering the mouse pointer over the line separators does not show the 'double headed arrowheads'.
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>>It would really help if I could get an image of what you are seeing.
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>Hi Michel
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>I haven't had the blank upper pane since yesterday (i updated chrome and am now on the same version as above) but I do have the same inability to resize. If I hover the mouse over the dividing lines the mouse pointer doesn't change and I can't drag the line separator.

I had the same blank pane issue. I'll update to see if that helps.