If a hard reset (wiping the e405 clean and removing all data and settings) doesn't revive the display, then it likely needs a hardware repair. Pocket PC Techs fixes these kinds of problems and they do list the screen repair/replacement option but it costs $99: http://www.ppctechs.com/Toshiba-e405_227/repairs/Touchscreen-Repair-Service_362.htm
-------------------- Lisa Gade Editor in Chief, MobileTechReview