Account Selection Changes Without User Input (?)

Since I updated to 1.8 Pukka has been changing Delicious accounts, seemingly without input from me.

Basically, I was posting a string of links to one of the Delicious accounts I maintain only to find that Pukka had been defaulting to a different account. I'm not sure what (if any) input from me was triggering this. I post to 8 different accounts through Pukka. It's been changing to the account that's listed first in the Account Preferences pane.

Great feature additions in the 1.8 update, especially search. Thanks for it. Can't live without Pukka, extremely satisfied despite slight frustration from this problem.

Thanks for any help you can offer!