I, personally, can't find the "complete chart history" or chart runs.

I can find the chart runs but not the complete chart history. For instance on Britney's Top 40 Mainstream list Break The Ice was listed TWICE but Boys and DLMBTLTK was missing.

My old computer would have crashed immediately with that upgrade.

a lot better

I do like the fact that we can look at the complete history of the BB Hot 100!

yes
agree

A lot of information was messed up when they changed, but it should be fixed soon.

Their runs have some mistakes though.

Yeah the Visualizer showed Gimme More peaked at #6 and Womanizer peaked at #5.

Excellent upgrade! The site looks great!