Im running dual boot Win 7 and LMDE 64-bit on update pack 5. I When updating to #5 i may have selected "install new version" and I also have duplicate partitions of LMDE upon upstart. Im not sure if this is related, i thought I would share.
FIXED:
For anyone else with the terminal issue, a solution is to go into Edit / Profiles / Default / Colours, deselect Use colours from system theme and select the Built-in scheme Black on white.
viewtopic.php?f=198&t=113073#p631249



