Odd issue occurred this evening, no matter which catch up program i want to download, whether it be on iplayer, ITV Hub, All4, etc

I browse through to the program and hit select to download, however nothing happens. Tried selecting the format (SD or HD) and it doesn't seem to matter.

Recording using the standard TV guide work fine.

Broadband is connected and working fine, otherwise I wouldn't be able to browse the shows anyway!

Any ideas?