gallery corrupted/broken

Hi everyone,

I've been having this problem for over a month now but every time I enter the gallery all the households and lots appear with a big red X over the screen and every time I click on one gallery it says the item is corrupted before asking if I wish to remove it. When I select to remove it the screen tells me it cannot. I have updated all my mods and checked for any conflicts and I've even removed my mods entirely, the problems remains meaning it is not a problem with my mods but the game itself. I have deleted the 'localthumb cache' multiple times and tried moving my tray folder but nothing works. I have Norton 360 on my laptop and cannot find anything that would be stopping me from using the gallery. If anyone had some advice that would be much appreciated. I didn't mind it at first but now its becoming more of a problem. I've spent the last few days on forums following advice but nothing seems to be working. 

Thanks