Hi all, I'm new here but I've been running my "Comet" for a few years. Symptom Using the Newer Control panel, extension and system update. (v1.0.3 from OWC) I cannot enable the cache, dialog says that it cannot run reliably at any speed and disables it. Machine PB2400c Nupowr 240/512 80Mb/4Gb System 9.1 (fresh install) I'm sure that the control panel used to work, (but maybe a lower version of either System or control panel) Is there an issue with 9.x. Any advise however bizarre will be considered. Also does anybody know if there is an issue with Communicator 7. It installs then just freezes. I've searched high and low, and finally appeal to this learned list for assistance. Robert Platts. "I'll buy an ibook when my Comet is finally laid to rest"