Sure,
Go to EDIT Preferences, and select Thumbs, ON/OFF Turn them off.
What is it you don't like about the thumbs.?
You can also change the size of the thumbs. Edit Preferences, Thumb Size. You have 4 sizes, the smallest says TINY.
Also you can adjust the vertical separator bar between the thumbnail section and the right side section where the preview panel resides.
Just grab that vertical bar with your mouse.

Hope something helps.

Fred

Answer to Fred and comment to Mike. The whole name of the file is way more important to me than a thumbnail of it. I don't use the program as a batch editor; I, and a lot of people I know, use it as an image processor. Actually, its main function in my work flow (and I use it about 6 hours every day) is as a lay out tool and as an easy way to assign paper profiles to images I'm reproducing. It's valuable to me because it takes RGB profiles while my other image processor, PosterPrint($4,000+)wants only CMYK which are difficult if not impossible to make for an n channel printer(in my case a 12 channel printer).

The reason I switched to Ultimate is I've never been able to get Studio to print really large files without omitting a block of data. Ultimate doesn't seem, as yet, to have that problem. The other reason is I think Qimage is worth 90 bucks a year. I'll probably go back to Studio for the bulk of my work and turn to Ultimate for the occasional large file.

FWIW I have never used the thumbnails in either Qimage or, later, Qimage Studio. All I'm interested in is the name of the file (and I need the whole name frequently). The thumbnail is useless; I know what the image looks like. I guess i could make the thumbnails big enough to include the complete name. Finally, the thumbs just look klutzy to me; it doesn't seem like a big deal to be able to turn them off but I don't have a clue about programing. Every other piece of software I use uses file names. In my case, file names convey information that a thumb would never be able to; for example a subtle change in color in an area of a reproduction.

It's difficult to complain about a program that's so useful and so inexpensive and I won't.

120MB is small.  If no images appear, maybe you have the thumbnails turned off from a previous install?  Check Edit, Preferences, Thumbs off/on, and make sure they are turned on.  If so, and you never get thumbnails, does it say "loading" on the thumbnails?  You may have a corrupted image or images that is preventing it from proceeding.

Mike