Aha! I think I've found the problem/fix with waking my G5 with the Bluetooth mouse. http://docs.info.apple.com/article.html?artnum=86524 Waking from the Bluetooth mouse requires the above firmware updater but , as Tim said in his first post, > "Requires a Bluetooth enabled Macintosh (either built-in > or using the qualified D-Link DBT-120 USB Bluetooth Adapter (Hardware > version B2 or later. Older D-Link DWB-120M adapters are not > supported). Mac > OS X, v10.2.6 or higher required." There's a picture of the updatable adapter. The front looks the same as mine, but the back has B2 stamped on it. Mine doesn't. I've got an earlier (non-updatable) D-Link adapter. Wish I'd known this when I bought my G5. : \ I'll get the right adapter ASAP. Can anyone tell me what the older one might be good for? Thanks, irene