"Could not open in Design view. Quote values differently..." solved!
Ever get this message when working in the Vs.Net webform designer?
“Could not open in Design view. Quote values differently inside a '<%...” etc
This problem is easily solved by replacing nesting double quotes with single quotes. That means if you have this:
<img src="../<%=Application("SERVICE_COMPANY_LOGO")%>">
just change it to this:
<img src='../<%=Application("SERVICE_COMPANY_LOGO")%>'>
that did the job for me.