Today I upgraded from Framework 1.0 to 1.1 and Visual Studio from 7.0 (2002)
to 7.1 (2003).

Following the upgrade my web site renders HTML with all control style width
and height properties missing. Here is a before and after sample of a piece
of rendered HTML for a button that has its designer property set to 80px:

<input type="submit" name="btnLogin" value="Login" id="btnLogin"
style="width:80px;" />

<input type="submit" name="btnLogin" value="Login" id="btnLogin" />

You can see how the style is being omitted, and this behaviour is happening
to all controls in all projects on my machine. This weird change in
behaviour has totally ruined the appearance of my web site and has killed
development stone dead. Does anyone know what's going on?

In the meantime I will search KBs, web sites and config options.

Thanks
Phil