I use a web based app from Comergent that allows me to configure products at the company I work for. I.e I can check a box to include a particular feature, add a qty if appropriate, check off sub features as appropriate etc and it enforces legal configurations. Anyway, with the 1Password Extension enabled, every time I do anything like check a box it takes 30-60 seconds until I can do the next thing. With out the extension enabled in is ~1-2 seconds. I'm using Windows XP SP2, IE8 & 1Password 188.8.131.52. Unfortunately there is no way for you to access the application inside our corporate domain but I may be able to provide you log info or something. Any ideas?