can't see thumbnails in Explorer in Windows 7

[signmeup]

I can't see thumbnail images when I search thorough folders in Explorer in Windows 7. I just see an icon that says jpeg or png etc. No little image. It's been like this since I got the new computer and it's costing me time by slowing down my ability to find pictures fast. I can make the icons big or small but I can't find any way to make them thumbnails. Any ideas?

 

[Custom_Grafx]

It's in folder options as attached. The first item in the marked area.

 

[signmeup]

Sweet! Thanks a bunch! That makes my life a tiny bit easier.