It's not really an addon problem (I hope), but I don't really know where else to ask it... I've lost my itemcache. Well, at least part of it: I don't have in-game any information about items with durability (armor and weapons), everything else seems fine. The durability-items' tooltip only says "Retrieving item information', but I never got anything.
I've tried without addons; it doesn't seem to be working. Of course it isn't working with addons too. I've just changed from WinXP to Win7; the file permissions are fine, I have rights to write them. I really don't understand the reasons and I don't have any idea what to do...
I've already set that, so I'm running WoW as admin. (and if I have such problems, all of my itemcache should be dead, but it only affects items with durability...)
I've reinstalled my client, but I don't have time to test it yet; without addons the new install seemed to be slow with the data download for the tooltips. I don't know the reason for that yet.