Not sure what happened on my dev machine, but I can barely use visual studio 2010 these days. I have a copy of a professional edition installed on win7 pro x64 build, working on top of the i5 M430 and 6 gigabytes.
With VS2010 open, I saw the process flow to 600,000 k +.
The editor is very slow. Each character that I entered sends gui to "Not Responseing" for 5 seconds, and starting / stopping the debugger is an operation in 30 seconds.
I performed the repair. Without changes. I uninstalled the productivity tools and installed the perfwatson extension.
When I installed perfwatson, the GUI got a little faster when opening / loading the project. But the text editor still has a terrible delay.
What else can I do? Rendering is disabled in my environment settings.
an example of slowness (literally): typing Height = "1024" takes about 30 seconds to display in a text editor and make your own flash update to exit the response. The word "Height =" takes 5 seconds. Intellesense and blank "" takes another 5 seconds. Each digit appears every five seconds after that.
Needless to say, even trying to edit an existing work is a disappointing experience.
edit: rollback one version of the video driver. After rebooting, there are no noticeable changes.
edit: did some winforms projects today. No slow problems with this type of project. There should be something only with wpf / sl projects.
edit 8/18/11: There was an unpleasant project on the production server. VS2010 editor works great. Very fast and responsive. Not at all slow. So this is not something inside my project. This is something in my car. But a complete rebuild of the OS is something I just can't do now. Probably, distribution will begin soon.