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

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

Actually, I found the problem. Somehow the option to minimize to the taskbar tray became enabled. I cannot say how as I did not even realize this was available.