I saw another post on the following VS 2005 bug -- but it was for the express edition...
It appears grid/guide toggling in the WinForm designer is simply broken in VS2005. The only way to toggle the grid is to go to the Options dialog and change 'LayoutMode' to/from 'SnapToGrid'. Then exit / restart VS2005.
The Toggle Grid / Toggle Guides buttons on the Dialog Editor toolbar never become enabled. Similarly, I've added menu items to the Format menu such as "Guide Settings..." and these never become enabled. (Also, the Tab Order button works on the Layout toolbar, but Tab Order menu item I added to the Fromat menu never becomes enabled.)
I've investigated this on three different VS 2005 installations with consistent results. I've also tried both existing VS2003 projects and new VS2005 projects.
Are other VS2005 users seeing this behavior Am I missing some new trick / gotcha with WinFroms in VS2005 Or is ths just a real (and rather obvious) bug in the VS2005 IDE
Bill Griffis

VS2005 RTM - grid/guide toggling broken
RudyH
The grid options are activated through the Tools-Options-Window Forms Designer menu item.
Please note entry 89577 at the Feedback center:
http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx FeedbackID=89577
It notes that if you "close the designer, and then reopen it the gridlines should appear".
This behaviour is difficult to explain to the users of my designer. Until I come up with something better I have resorted to adding a comment to my Tools-Options dialog that says "Layout mode changes take effect the next time a form is opened".
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