When I browse to the central admin site on my dev box I just get a blank page.
I looked in the event viewer on the server I see this
Could not load all ISAPI filters for site 'SHAREPOINT CENTRAL ADMINISTRATION V4'. Therefore site startup aborted
So I go to the central admin site in IIS and try to open the isapi config and I get the error shown in the image.
I've googled this and seen results for uninstalling 1.1 framework and running aspnet_regiis but as this is a SP box I'm not too keen to go to far under the hood.