Problem with testing sql connection
I have developed an asp,NET site in MX2004. Everything worked fine. I installed 8.02 on the same machine (we have the license for this version also, I was just using an older machine) so I could use a charting extension. Since I started using this version, I am unable to test connections or set up new datasets (I get the message 'internal server error 500'. However, when i preview extisting pages in he site, the connections work fine. It's only when I try to develop new pages that I get the problem. The problem occurs in both 8.02 and MX.
I'm at a loss- can anyone suggest a possible cause?
Many thanks