I've not been able to run the Helm's Deep battles (esp. Deeping Wall) without it regularly crashing, sometimes within a minute of the battle loading. First the window minimizes to the menu bar, and then when I click on it, the window comes up to an all white full screen. I have to force quit WineLoader and then exit PyLotro to start the game up again.
I've tried running on the Very Low graphics settings, but that doesn't help. No other programs are running when I fire up LOTRO.
My current system is a MacBookPro from 2008, OSX 10.6.8, 8GB memory, running the "better performance" internal graphics card. I often use a 24" Apple Cinema Display running at 1600x1000 full screen resolution, but it doesn't seeem to matter whether I am using the laptop screen or the external display. Also I am stuck with 10.6.8 for various reasons, otherwise I would upgrade to Mountain Lion and run the native client.
Maybe the MacBook just isn't up to the needs of Helm's Deep, or maybe the infamous memory leak problem has reared it's head again (where the screen used to minimize to the upper left corner).
Any ideas would be greatly appreciated. Even knowing that others are having this problem would at least let me know not to both with Helm's Deep Battles on the MacBook