I reformatted my hard drive and put in two users, say user 1 and user 2, instead of only one user. Having only one user the scanner worked fine. However, now with two users, if I install the scanner driver using user 1's screen then only user 1 can use the scanner. User 2 will get two error messages upon start-up of the scanner program. Error 2099-Problem with registry settings and Error 2141-Unlock carriage lock (which I checked and is unlocked). What causes this problem and how do I fix it so that both users can use the scanner using their own screen names.