The space in the Therion install path may not be the whole story. The path to my installation of Therion is C:\Program Files (x86)\Therion , which has two spaces, and I have no problem compiling a map with 'sketches on' and -sketch xxxx set for some scraps. Windows 10 Home v 1803 Bruce -----Original Message----- From: Therion <therion-bounces@speleo.sk> On Behalf Of Duncan Collis via Therion Sent: Thursday, 14 February 2019 20:02 To: List for Therion users <therion@speleo.sk> Cc: Duncan Collis <duncan.collis@gmail.com> Subject: [Therion] Morphing of background scketches fails on Win10 when Therion installation path contains spaces Hi, Another problem I encountered when trying to morph background sketches, this time with an easy workaround which I am posting here in the hope that it will of use to someone. With Therion installed in: D:\Program Files\Therion the following error appears in the compiler window when trying to morph background sketches: 'D:\Program' is not recognized as an internal or external command, operable program or batch file. Reinstalling Therion in: D:\Therion solves the problem, which seems to be due to the space in the original installation path. Best regards, Duncan. _______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion