There is a very good chance then that you have just made a small mistake when installing and starting to download.

First of all. Did you by any chance choose to not download without a licence ?

That will render most downloads useless. If so go to

Tools>Options>View>Popups and check the revert to default box

Then press apply and ok

then go to Tools>Options>Searching>Basic and uncheck Show Licence Warning

Then go to Filters>Content and uncheck contentfiltering

Press apply and ok