Dialog box always goes to the upper right of my screen and unusable
This has happened consistently in Photoshop Elements 11 for a good while now. I am editing an image and click Enhance and choose the Shadows/Highlights option. The dialog box opens at the very upper right of my screen (PC with latest Windows 10). However whilst I can see the sliders and can adjust, also Cancel, I cannot see or access OK. I have tried minimising the program but the dialog box still stays outside of the Window, in the upper right of the screen. I am literally stuffed.
Please help me gain control back. I cannot use the program as it is!

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