Hi RG - it
is a new computer, well mother board, processor, RAM! I'll wait for the marketing hype: "It'll all work perfectly in Vista". Thanks for the input. I was out of ideas from the start.
Doc Man, I'm certainly getting no marks for English. "Describe in your own words..."
OK, I have done a detect/repair, a repair install and an uninstall/reinstall. Let me recap: all windows within the Access IDE are resizeable (i.e. can be resized by click/drag on a border) except the Properties window/dialog and the Field List. These were always resizeable and I kept the Properties window extended down the side of the IDE, about 3 times its normal height. One day, I needed to make it smaller and its size was fixed so I did a 'detect/repair - reset to defaults'. The windows opened at the out-of-the box default size but could not be resized, although the sizing arrows appeared.
I think you're right about the Properties window being a true child window and are right to say that Access does not resize windows, but it does define the type of window, resizeable, dialog etc. A program's volatile settings (position and size of windows) would normally be stored between sessions in local files while interface switch-type settings would be stored in the Registry and this seems to be a switch-type setting - Resizeable=False, although WIndows clearly sees it as resizeable, hence the border and sizeing arrows.
Windows in the other Office programs are all (so far as I can tell) resizeable. It just seems to be these two.
I have used a Registry utility to clean and defrag it and have done a full virus scan but not between installs so I'll try that over the weekend and let you know. I am reluctant to do a Windows repair as my experience of less than full installs has been unhappy. But it may be the only thing left.