Ok a quick google for not being able to find the Library folder and I’ve found that the Library folder is hidden, and by pressing ‘option’ when in the ‘Go’ folder of ‘Finder’ it reveals the hidden Library folder. I have now been able to locate and delete the ‘General.dat’ file. Then launched Wavelab, and it is now working. So even though my window preferences have returned to factory preset, I don’t mind, as I have Wavelab back up and running and can continue working once again. Thank you both Justin and PG, your help as always is much appreciated.