[Active window disappears]

I am using Windows 7 Home Premium on an HP Pavilion dv6.

 

When I launch Defraggler, all looks good.  If while Defraggler is open I also launch CCleaner, run a few things including registry clean, then close CCleaner, the active window and taskbar icon for Defraggler disappear.  If I attempt to launch Defraggler again, a warning pops up saying it is already active.  And sure enough, its listed in Task Manager.  Since I am unable to get the window active again, I must kill the task and start over.

 

I did not think these two would be interactive in this way, but apparently it can happen.

 

thanks, -Doug

Yes it hapend to me too,but just wait do not press it again it will open by it self