Today, after about 2 weeks of last successful download, I noticed that a new popup is displayed everytime I try to download emails. The popup is titled "YPOPs! Yahoo Error" and shows Yahoo Privacy Page. On clicking Close on the dialog, the dialog closes and so does the download. I think this is a new addition from Yahoo which 0.8.8 doesn't handle (of course I understand why). I would look forward for this fix.
Also, I am still sticking to the old Yahoo interface, because YPops does not support it. Is it technologically possible to support YahooBeta interface ?