Viewing MOV files

[tdret]

When I view a MOV Quicktime movie file, the window opens in the upper left corner of the screen and partially out of view. I have to pause and resize each time to see the entire picture. How can I get it to open to fit my screen?
Irfanview 4.33
All plugins installed
Apple Quicktime viewer installed
OS - Windows 7

[Sprintdriver]

No offence, but I'll claim that VLC is far more suitable for viewing video files.

[Bhikkhu Pesala]

I agree — although IrfanView can view many kinds of file types, it is best to use it only for images. Videos and PDF files are better viewed in the appropriate software. I would not keep video files in a folder together with images.