Thanks Donald - I've confirmed this bug and added it to BUGS.txt. It appears to be a wx issue unfortunately, so will probably need Andreas' expertise to fix.
Regards, Dave
pgAdmin III Version 1.1.0 Devel (Apr 14 2004)
OS: W2K SP4
Bug:
1) Open SQL editor pain with for example a large PL/PGSQL function.
2) Select cursor say 10 lines from top:
3) Edit->Find (Ctrl-F) type some text in the "Find what" text entry - for example "gobbledegook"
4) Press the "Find Next" button.
5) Change direction to up.
6) Press the "Find Next" button.
pgAdmin III locks up
regards
Donald Fraser