[Mono-aspnet-list] Problem with Ubuntu12.04LTS+Apache2.2+Mono+asp.net application

[Ade]

Hoping someone can help me out with this, as I don't seem to be able to find anything out there...

I have a fairly complex web app, written in VB.Net for Framework 1.1. I have previously successfully deployed this via Ubuntu/Apache/Mono, the web app is a little slow to start up but works perfectly.

Today, we installed on a new client using 64-bit Ubuntu 12.04, all the latest Apache/Mono stuff, and the app is acting wierdly:

1st page (login.aspx) works fine. On clicking the button, an AJAX request is sent, this is processed and returned properly, and the app moves onto the next page. All of the VB code under the page runs fine (I can see the results in the log), but instead of substituting my <%=xxx%> tags, Apache simply serves up the source ASPX file unchanged.

The exact same technique works fine in the login page.

The app compiles perfectly, no errors or warnings, and runs fine under IIS.

There are no errors showing in either the underlying code log, or in the Apache log (I was getting registry key errors, but fixed that).

Anyone got any ideas what might be going on and - more importantly - how  I might fix it? I don't want to have to ditch the setup & go with a Windows VM if I can help it.

Cheers,
Ade.