I attempted to use 2.1.1 on my WinXP box today, and the 2.0.3 version was MUCH better in terms of overall performance. I'm constantly getting CPU spikes and audio dropouts when attempting to preview while the engine is running. This was not an issue for me at all when using 2.0.3 and has made 2.1.1 unusable for 'on the fly' jamming.
WinXP (SP1)
1 GB Ram
AMD XP 2400+
Terratec DMX 6fire
16/44.1
Considering I can all my other host apps at 24/96, I'm at a loss to explain why this is happening. Am I the only one?