I upgraded to OS X over a year ago and have been using my scanner with no problems. Recently, every time I try to use my scanner, it opens Classic 9 and then gives me an error message that the scanner cannot be found. I've tried using a different USB cable, tried plugging it into a different USB port and have pulled the power on it. When it first started acting "heinky", pulling the power supply and rebooting worked, but now that's not even working. I also recently tried to open a pdf file and it also opened Classic 9 and then wouldn't read the pdf file. No new updates have been installed or anything that may affect the OS. Any ideas?