Possibly your workstation "user" is not configured like the successful users was.

Perhaps the other user's workstation is where QRWIN was installed from/to initially.

Try installing QRW logged on as your username. To save time, you may want to ensure that you have Network rights, before you proceed.

If this does not work, we would require as much information about the original QRWIN install and the type of Network, how many users etc...