I'm curious, where is your PTS folder? If you put it in c:\program files or c:\program files (x86), it might cause problems. More info here: https://systemax.jp/en/sai/. Source: 11 months ago
I would contact Systemax Software, the maker of SAI. Here's their website: https://systemax.jp/en/sai/. Source: over 1 year ago
Where did you download it from? If you didn't get it from https://systemax.jp/en/sai/ then it could be sideloaded malware. Source: about 2 years ago
Do you know an article comparing PaintTool SAI to other products?
Suggest a link to a post with product alternatives.
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