As I know, we can only do that by hand, and must must edit the “catalog.xml” file here: app > design > frontend > default > myskin > layout > catalog.xml. Do a search for “Product view” and change the code:
<reference name="root">
<action method="setTemplate"><template>page/2columns-right.phtml</template></action>
</reference>
and i already set 2columns-right.phtml there, but it still is using 2columns-left.phtml !
Who know how I can figure out this problem ? thanks.
May be you need to change catalog.xml here,
Check there which template is assigned?. if it is not “2columns-right.phtml” change that.