Cortek WB problems

Didn't know where else to put this. Downloaded Cortek WB and used the non per pixel version. WB would not load. Used the limited per pixel version and ran into all kinds of problems. Not all apps would skin, Fastone capture failed to work, Everything froze solid. Had to reboot and still the same problems. Everything then slowed to a crawl. Unloaded the WB and then all was fine. I'd include a screenshot but it didn't work. Any ideas. My system doesn't do perpixel yet but I've not had any problems with other WBs that have this option.