In case you have not yet contacted Technical Support in relation to this issue, it has been fixed. It is a problem with the Twain_32.dll not installing on your PC appropriately, or due to the fact that you uninstalled scanner software and it pulled that file off the system. Contact a support rep so that they can send you the necessary file to fix this little (very benign) error message on boot.
Can't you just give us a URL to download the fix? I have contacted support about my "scrolling text" option just dissappearing and haven't heard squat. I am very happy with VF otherwise, but I am a new customer to your company - if I have trouble getting fixes to problems that I have not myself created, it will mean an end to any business relationship with you.
I know support is difficult, trust me, I am Senior Technical Engineer for a company - but even a "We'll get back to you" from a HUMAN is better than a canned reply and then NOTHING. Right?
In addition to some of my titling options suddenly disappearing, I am also experiencing this "renderer" message at startup. A direct fix would be most inviting. Thanks.