I have a setup with three monitors using the one in the middle as the primary one. It seems that I can't place icons in the lowest row of the primary monitor, as they will snap and jump to the row above it. If there is another icon above it, this icons kinda gets in the way and prevents the problem from occuring. It works fine on my other monitors as there is no taskbar there.
For some reason, this behavior only occurs when there is a monitor to the left of the primary one, and I've noticed the same thing in Windows XP. The system seems to adjust the bottom of the icon space to work with the leftmost monitor. Is there any way I can fix this? Adjusting icon spacing won't help. Also, is there any tool to backup and restore my icon layout that works in Windows 7 and not just XP? It gets messed up when i switch from extended desktop to AMD Eyefinity mode and vice versa.