HEY! Come back here! (or: why is my transaction moving?)

[Jason Godfrey]

Hello.

I just upgraded to GnuCash 1.4.3 from 1.4.0 on FreeBSD. While entering 
transactions tonight I ran into some problems.

I enter the transaction in my checking account, and choose an appropiate
expense account to link the transaction to. However, when I hit return the
transaction disappears from my checking account and shows up only in the
expense account. It also shows up as a rebate instead of an expense.

Any ideas on what is going on?
- Jason