>>>>
>>>>It sounds as if you added the reference via the Browse tab - in general it's easier (and probably safer) to select the Net namespace from the .Net tab.......
>>>
>>>Possibly, but I think that was because they weren't available in the .Net tab
>>
>>Seems odd - IIRC those assemblies would normally be in the GAC and, by extension. listed under that tab.
>>You could try adding them there yourself to make things easier in the future :
>>http://www.thescarms.com/dotnet/gacutil.aspx
>
>Hmm... Looking at it now, all the assemblies in there are version 2 and 1, but I do have version 3 installed too. Maybe I should un-install 3 and re-install it?

Worth a try.....