Now I have problem, that is very annoying (at least to me). That happens sometimes.
So, when mouse enter to icon in toolbar, then background of that item get 'light'. When mouse leave from there, that 'light' stay there and don't dissapear.
System Manufacturer/Model Number Me OS Windows 7 Ultimate 32bit CPU Intel Pentium IV 2.80 GHz Motherboard Gigabyte GA G41MT-S2P Memory Kingston HyperX 4GB (3.5 usable) Graphics Card Nvidia Geforce GT-440 Screen Resolution 1024x768
The light on a taskbar icon like that is to indicate that it has just opened while you were in another active window, and is alerting you to this. Does clicking on the icon return it to it's normal color?
System Manufacturer/Model Number Me OS Windows 7 Ultimate 32bit CPU Intel Pentium IV 2.80 GHz Motherboard Gigabyte GA G41MT-S2P Memory Kingston HyperX 4GB (3.5 usable) Graphics Card Nvidia Geforce GT-440 Screen Resolution 1024x768
System Manufacturer/Model Number Me OS Windows 7 Ultimate 32bit CPU Intel Pentium IV 2.80 GHz Motherboard Gigabyte GA G41MT-S2P Memory Kingston HyperX 4GB (3.5 usable) Graphics Card Nvidia Geforce GT-440 Screen Resolution 1024x768
System Manufacturer/Model Number Me OS Windows 7 Ultimate 32bit CPU Intel Pentium IV 2.80 GHz Motherboard Gigabyte GA G41MT-S2P Memory Kingston HyperX 4GB (3.5 usable) Graphics Card Nvidia Geforce GT-440 Screen Resolution 1024x768
System Manufacturer/Model Number Me OS Windows 7 Ultimate 32bit CPU Intel Pentium IV 2.80 GHz Motherboard Gigabyte GA G41MT-S2P Memory Kingston HyperX 4GB (3.5 usable) Graphics Card Nvidia Geforce GT-440 Screen Resolution 1024x768