[Lazarus] Lazarus 1.6 RC1 startup WinControl.WMSize loop error on win 8.1 if maximised and Taskbar Auto Hide enabled

[Russ Davies]

Hi,

On my work Windows 8.1 machine, if the Taskbar is set to Auto-hide, and 
Lazarus 1.6 RC1 is maximised and then closed, on restarting Lazarus a 
large number of WinControl.WMSize loop errors are raised.

If OK is clicked for all of the dialogs, Lazarus eventually starts, 
albeit slightly larger than the monitor size.

If Lazarus is closed when sized differently (smaller or slightly bigger) 
than the monitor, this issue doesn't occur. Likewise if the Windows 
taskbar Auto-hide is disabled, Lazarus starts normally even if maximised.

Lazarus 1.4.4 and 1.5 (don't know revision) don't exhibit this problem. 
I have tested it on a virtual XP machine with the same monitor, a 
physical XP machine with a different monitor and a Windows 7 laptop with 
no problems

Thanks

Russell