We recently released a VS2010 sp1 QFE KB2650605 to solve a VB editor debugging problem.  During VB web form debugging, VB web form may become un-editable if there are server tags inside.  If you develop and debug VB web forms, you might be interested to download this QFE.

http://connect.microsoft.com/VisualStudio/Downloads/DownloadDetails.aspx?DownloadID=40811

Update for another download place due to broken link in connect Url: http://blogs.msdn.com/cfs-file.ashx/__key/communityserver-blogs-components-weblogfiles/00-00-00-63-56/3146.VS10SP1_2D00_KB2650605_2D00_x86.exe

Best regards,

Xinyang Qiu

Web Platforms and Tools Team