No Minimize, Maximize, Restore, Close in file windows in Paint Shop Pro 5

[marcelo.spitteler]

Hi!

I installed an old version of Paint Shop Pro 5 in Wine 5.0, on Ubuntu MATE 20.04

It works mostly OK, but in the file windows inside Paint Shop the numbers 0, 1, 2 and a small squeare are shown instead of Minimize, Maximize, Restore, Close buttons respectively.
This is a picture of the buttons:

https://drive.google.com/open?id=1p9GDP ... 4vSD7_EAqB

I have installed this program in the past in older versions of Wine and never had this problem.

Any suggestions on how to solve the problem?

Thank you in advance.