vBulletin won't save settings!
 

I'm having trouble with my vBulletin - it won't save the settings! This only happens when I have more than one group of settings loaded at a time (for example* when I try to save the 'Show all settings' in the vB Options).

This has only started to happen since I moved servers (hosts) - is there any way to fix it? It is quite annoying.

It also won't save my module settings for GAZ - it just creates a new modules set every time I try to save it. Please help there too?