I'm using Chrome. (Please do not suggest another browser-Firefox constantly crashes and IE is a hazard on any computer-and this is the only website that I have ever had a problem with while using Chrome)

Every time I cluck unequip all....I have to click it twice to get it to work.

The only way to get things to equip (other than luck) is to wait until the four way arrow appears and click. But with Multi poses items......I can't equip them at all. Neither clicking and hoping it will work or the arrow thing will make the choices of poses work.

Edit: I must do magical clicking to make the other poses appear....I think it's just luck that they popped up.

On chrome, try clicking just left of centre on the icon. And just click like mad for multi. I had the same problems, except that I just changed to firefox.

I use Chrome (LOVE CHROME) and I just click a bunch of times like Crazee suggests, and after a few clicks the options will appear for multi-items for me or the item will just equip for the single items. I don't know if that's much help, but that's how I get it to work.

Adding on to the rest, when I use Chrome for equipping, I find that the mouse targeting tend to be more sensitive on that browser. It sometimes holds on to the item longer than it should while clicking, dragging it when you move the pointer.

If I am on my laptop, I don't tap on the mousepad, but I use the left click button instead because it's static and won't pull the icon around. Even then, it still sometimes require more than one click to equip the item or to get the multi+ pop up to appear. If you can't manage to click on it right the first time, pause for a few seconds and try again. :)

I'm afraid I don't have a better suggestion for that, though, as I primarily use Firefox.