Okay so I updated to the latest 1115 build straight after it came out - running on Windows 7 Home 64 bit. All was well until this morning. A number of issues:
1. On launching PI has reverted to its defaults (toolbars, menus, all settings basically). It was fine yesterday and I haven't made any changes to the setup yesterday or this morning when I launched it. Rather odd - this definitely isn't the 'second instance' problem - launching one instance using the main icon and a second with the 'new instance' icon I get default settings in both. Not the end of the world but at a loss to understand what has happened.
2. On trying to re-create my setup I now can't create a second horizontal bar for the toolbars. Used to be able to drag a toolbar off the first horizontal bar and hover it down below and a new bar would appear for it to be dropped in (the PI resources video shows the behaviour so I know I am not imagining it!) Now no new bar appears when I try this. Also having trouble creating a bar anywhere else on the sides of the main window - I thought I should be able to do this by dragging and dropping. I can create a vertical bar to the left of the explorer tabs by selecting "Show Control Bars" - the "View" toolbar appears on it, but I can't drag the "View" toolbar from the vertical bar to the horizontal one (used to be able to do that) and I can't drag any other toolbar to the vertical one either.
Any ideas?