Haven't seen one in 2.0b7 yet but several in 2.0b3.
It happened to me yesterday with 2.0b7 and it wasn't listed as fixed in the release notes so I'm pretty sure empeg still knows about it.
An interesting thing about the bug that happened in 2.0b7 this time which I never noticed 2.0b3 (probably just a fluke): When the unit stops responding in transient mode, sometimes the line of text gets stuck while moving in/out and just 1 row of pixels shows throughout the song. I let the player continue playing and looked at it later, and it was still locked up, but the line of text was now 4 pixels and had updated to the next song. I never noticed this change before, but who knows if it has anything to do with the new beta.
Tom