DJpuppycat, greetings and salutations to you in return.
In order to discuss your problem, the mavins will ask you to produce your system specs... OS, processor, RAM, and versions of the software involved. Might also be helpful if you note the graphics card, drivers and when you last updated them.
Might also help to know what temp you're processor is running at. If you're having a problem locating all that info, Speccy can get all that info for you (get it free here: https://www.piriform.com/speccy/download ). Another thought is the power supply... less likely.
You might also consider posting your question over at Winstep.net. Jorge is usually quite quick at answering... you could also send your question to Winstep Support - same Jorge will likely answer, but include the data I suggested for a quicker reply. I somehow doubt Deskscapes/Winstep conflict, though. I've emailed him so he might drop by.