Invoice report not posting and wrong currency displayed

[deefactorial]

1) I'm using Ubuntu 11.10 .

2) apt-cache policy gnucash
gnucash:
  Installed: 1:2.4.7-1
  Candidate: 1:2.4.7-1
  Version table:
 *** 1:2.4.7-1 0
        500 http://us.archive.ubuntu.com/ubuntu/ oneiric/universe amd64 Packages
        100 /var/lib/dpkg/status

3,4)
When I create an Easy Invoice and Report on the invoice.
I try to post the invoice but it asks for the Account to post the invoice to. The default list of accounts in the pull down menu is missing and if I try to manually type the name of the account like Invoice:Sales it doesn't work. Therefore I cannot post the Invoice.

Also the Amounts are listed in USD When my default currency is CAD.