Category images - how to remove/not show

[leocat]

Unlike others here (I used the Search) have no problem showing category images - I don't have any  . So in the category view I have this "no image available" Pic displayed. I don't want to show any pics but only the category names.

I know it must be somewhere in the css. But in what file and where? I'm sure it's only a line to remove, isn't it?
It's hard to find out with a two-year old running around screaming for entertainment... I've got to fix this by this evening, so would anyone PLEASE kindly tell me, how to remove the image?

Thanks in advance!

Kathrin

PS: VM 2.0.20b, Joomla 2.5.9, Template:   yag_vision_vt - Standard

[Maxim Pishnyak]

Especially for newbies webmasters
visit sticked thread, PLEASE - http://forum.virtuemart.net/index.php?topic=116620.0
visit thread in FAQ section of current forum section, PLEASE - http://forum.virtuemart.net/index.php?topic=102850.0

And don't forgot that you can delete command that show images directly in php files.
PLEASE, start to use available template system for Virtuemart web pages.