TreeView toolbox

Hi All.
On my toolbox I had 2 TreeView items.
When I tried add item to Toolbox I uncheck TreeView by misstake. When I return back to check those TreeView items back I found only one:
TreeView | System.Windows.Forms | System.Windows.Forms (1.0.5000.0)
I check it and now TreeView icon on toolbox looks like unactive. How to get both TreeView items? MSDN notice that .NET Framework Components tab lists at least two TreeView entries. One TreeView entry is for Windows applications such as .exe files. Another TreeView entry is the Internet Explorer WebBrowser TreeView control. How to fix it problem?

Thanks.

Have you tried to reset the toolbox? (right click on it and choose reset toolbox)

I had an issue where the first 10 icons in my toolbox all turned into the icon for a button control. Nothing fixed it except for rebuilding the toolbox, which is just a simple button click unless you have it all setup custom, which a lot of people don't do.