Yes, Tortoise was also installed on my system. I deinstalled Tortoise and reinstalled AnkhSVN, but same problem.

Newest Version of AnkhSVN, Windows 7 and VS 2010 with all updates

At "Pending Chanes" there is also a button "Commit". When i use this button and not the context menu in the project view it works perfect.

PS: At the main page at http://feedback.ankhsvn.net is a textfield with the text "- enter your idea (new feature, fix bug, etc) -"

OK, i tried a few more tests:
I´m right, it is a modal window from ankhsvn. When i press Enter (when the invisible modal window is open) the commit will start and when i press ESC the modla window will close and i can use visual studio.

I have the newest version of AnkhSVN, Visual Studio 2010 and Windows.

The kind of the repository is http.

I try to right click on my solution, project and single files in the project view in the visual studio and then try to commit. the window is always invisible and with ENTER I can always start the commit.

Here some more information:

Visual Studio 2010 Ultimate
Windows 7 64Bit
.NET 3.5 WindowsForms Project

This failure of AnkhSVN happens every time i commit, yes. Every window and function is working, but when i commit the Commit-Window is not showing and i can´t click to Visual Studio - maybe modal AnkhSVN-Window?
I repaired AnkhSVN and reinstalled it - nothing changed.