My PC is a few weeks old, it a Dell Studio XPS Win7 i7 so is perfectly ok running WoW on ultra settings.

I have a problem with Ulduar though but only in my Holy spec!

Addons I use are the exact same ones I use for Shadow so I can't see an addon conflict at all. Though a few of us last night were having crazy Grid moments, fixed by logging off and back on again. I thought it was Vent a couple of weeks ago because that was playing up so I uninstalled it so obviously that isn't a problem.

When I switch to Holy all seems fine until the boss encounter, I have about 5 seconds worth of normal play but then the game rapidly loses FPS until it is totally unplayable within a few seconds.

I was playing last night as Shadow in Ulduar, no probs, switched to Holy for the second attempt at HM Freya and *poof* FPS gone, I die, raid wipes. Rez try again, same thing. Extremely frustrating as I don't have this problem anywhere else whilst raiding as Holy spec.

I switched off addons I didn't need such as recount, sexymap, onebag. Still the same..... and wiped again.

Worth noting that last week we did Yogg+1, I was healing and I didn't have any problems. Very, very odd.

Perhaps something doesn't like me changing spec during a raid? As with the Yogg encounter I entered the raid as Holy to start with.

Help would be appreciated.

Hi,

I would probably make sure that you have tested with no add-ons installed at all, disabling them won't always top their presence, and if your using add-ons these add-ons may be causing the performance issues based in the information they could be sending or pushing over the chat channels.