I can no longer resize or perform basic edit in Pulse Maestro.

[Ree Spencer]

I have been operating TG/ML by Pulse  on a PC for many years.  I do not do any digitizing other than set up names for embroidery.  All of my embroidery files are digitized by the services that I use.  All of the sudden I can not resize, or add names to my  stored dst files.  Th PC has never been connected to the internet.  I have all of my dst file saved on an external hard drive.  I typically open a school mascot file, change text (name) and transfer it to my SWF.  I can no longer do the simplest edits.  any suggestions?

Thanks!