Ola cell imagers two things: 1. Argon Laser on the olympus has been replaced yesturday and its okay now to shut down the system and the lasers. PLEASE switch off the lasers prudently when not in use. 2. the CLSM old zeiss mouse needs to be plugged into the USB port of the main computer. The USB ports on the monitor are not working. a label has been placed on the monitors. Will get Raf to look into this and once fixed the labels will be removed. have fun niloufer