When I tried to use PL/SQL Developer (trial version V5.1.6.747)
from MS-WIndows XP (Oracle client version 8.0.5) for working
with several different Oracle Instances (Oracle server versions
8.1.7.4 and 9.2.0 on SunOS 5.8) I got following problem.
After successfull login and cklicking on an object...