Some Web pages not appearing

[tellivision]

Hello there,

For some reason, every now and again some of the pages on my website (http://www.ranges.tellivision.co.uk; my shared IP address is 87.117.234.244) don't load, instead going back to the index page. There seems to be no reason for it doing that from my end so I wonder is it something to do with any kind of maintenance being performed on the servers? It's happened 3 times now in the past week and it would be nice to figure out what's causing it even if I can't stop it.

Thanks

[eUKhost.com]

take a look at Images, scripts not working... whats going on?

You had problems for same reason.

[tellivision]

Thanks Much appreciated.