The input font is likely the issue with the NLS characters. Support for changing the input font will be available in the next update release (4.0.3). In the meantime if you want to try version 3.2, it supports changing the data input font and should work OK. If you then wanted to upgrade to 4.0.3 when it is available, it will be a free upgrade.
See the following forum topic for instructions on working with non English languages, for PowerWorship 3.x. viewtopic.php?f=6&t=526
Appreciate the feedback re: copy and paste. The next release will also include a right click popup menu as an alternative to the shortcut keys.