So, whenever I play music from iTunes 10.5 beta (10.5b132, but has happened with all versions), the screensaver refuses to activate. I am not sure if this is specific to iTunes, Lion or a combination of both.

Anyone care to test this out for me and let me know what the cause is? It's causing problems since I use my Mac with a television and I'm running the risk of burn-in if I neglect to manually activate the screensaver with a hot corner.