Ha ha, I thought it was just my slow machine. I'm also having problems - I trade off constant volume bars, rather than time bars. From what I can tell, NQ is the only problem building CVB's, but it appears like the time bars for NQ are building correctly.
sorry, off topic, but is anyone seeing data problem w/ IB currently? i'm connected to TWS, but no data flow and TWS = pink.. nevermind