why my customers are still seeing the old layout or information that I have updated o

you have some css files that are not loading. which are part of the edify template.

you should resolve your console errors and then validate the html and then you can work on your css.

right now, there is a large margin which prevents multiple items from appearing on one row.

good luck!

Three per column works fine till resolution exceeds 1600 width.

win8win:

hello

why my customers are still seeing the old layout or information that I have updated over a week.

I find a problem that my customers are still browsing my old version of my website,even though I have updated
certain layout for more than one week

for example

one week ago,I installed "column layout_grid" plugin and set the layout to show 3 products a row,but my customers are still seeing
one products per row,

what should I do ?

figure out a way to auto-clear the browse cache for or by zen-cart websites?

thanks

The site you mentioned, 7wallarts . com/abstract-c-111/ - has HTML Errors. Fix those first then see how things are.