Frank, you are probably running dnn 3.2.2 on asp.net 2.0. There is a change somewhere in the handling of fileuploads of large files in asp.net 2.0, which can be tweaked in your web.config. Change this line in your web.config:

<httpRuntime useFullyQualifiedRedirectUrl="true" maxRequestLength="8192" />

into this:

<httpRuntime useFullyQualifiedRedirectUrl="true" maxRequestLength="8192" requestLengthDiskThreshold="8192" />

cheers,

erik

Glad it worked Frank. Anyhow, if you are running dnn 3.2.x, you should consider running it in asp.net 1.1. There are no advantages in running with asp.net 2.0, the asp.net 2.0 support is available to allow for an easy upgrade path to dnn 4.x. In my experience, you will see some errors running on asp.net 2.0 (filemanager is doing some weird things as well).

cheers,

erik

Frank as to .NET Framework, select your web site or virtual directory in IIS and then right click for properties.  In the properties window you will find a new tab ASP.NET which will allow you to select which version of the framework is to be used.

HTH.