After fixing it the first time & having it happen again; I'm thinking it is a problem with the zgate.dll or prjChameleon.ocx files or maybe even both becoming corrupted. Try removing the files from your system or SysWOW64 folder, deleting them and adding new ones in there. (Unzip the MaginSS folder to get the files again.) Switching my default printer did fix the problem the first time. But it didn't stay fixed for long.