i47.tinypic.com/157hm4m.png
Here is screen what happens. As you notice some items have bigger icons than others.
How to reproduce:
Go to furniture tab. Click item and choose change style. Then close window with "X" button. Icon becomes bigger than before. Sometimes i have crashes of chrome flash plugin when this happens.
I use Debian Squeeze 32bit. Chrome for linux. Flash player have hardware acceleration disabled, because of "blue screen" VDPAU bug. If it is enabled it crashes sometimes too. I use latest stable Nvidia driver.