The example program for Tk::Splashscreen is http://cpansearch.perl.org/src/LUSOL/Tk-Splashscreen-1.0/splashscreen.pl. On my system (WinXP 64 w/ Activestate 5.12.2), adding the $splash->geometry("+20+20"); command as above succeeded in moving the splash window.
in reply to Re^2: I want Tk::Splashscreen not centered.
in thread I want Tk::Splashscreen not centered.
If this isn't the case for you, please reduce your program to the minimum needed to demonstrate the problem and post it as a new question, along with details of your OS and Perl versions. (More people will see a new SoPW than will see new replies in this one.)