[close tool button HUMONGOUS]

Problem solved!   

Thanks for the links. And thanks to HammmIAm for finding and posting the solution:

Open regedit

search for WindowMetrics

set smcaptionheight and smcaptionwidth  to -252

 

(needed the minus sign, in my case anyway)

[close tool button HUMONGOUS]

The red "close" button on the toolbar (F5) has become ridiculously large. Same problem with all the other floating tools (History, Layers, Colors)

 

(see attached screencap)

 

Only happens with paint.net, all other programs OK.

 

 

Any suggestions?

 

Win10

Paint.NET 4.0.6