Andy, if you don't get better replies then you can try doing a Windows repair. Insert your Windows CD and there should be a repair option somewhere in there. This is something I've only done once so I'm working from rusty memory but as I said if no one comes with better idea... Good luck. Amro _____ From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of ANDY COLLINS Sent: Monday, November 07, 2011 9:10 PM To: access-uk@xxxxxxxxxxxxx Subject: [access-uk] DLL file error Everytime I boot up I am told there was an error loading... \libauthentication64\acxobplugin.dll I've just googled for it, and found something called SpeedMaxPC for fixing dll errors. Anybody use this software, and able to say if it works ok with JAWS9? Thanks - Andy