We couldn't replicate the bug. But we checked the programming code and made an attempt to fix it. You may test the next version and see if the bug occurs again.

Hi David

Im not sure I triggered this one. I was in the products tab, and had myself selected (So I could see my 4 products I was selling)
Then I clicked on the "product details" link, which came up empty, and I used the mousewheel to try scroll when this happened

Heres a save game
https://dl.dropbox.com/u/23145017/MAT__001.zip