>>while your machine is booting up, when you see the post screen -the memory count and ide drive detect- try pressing the delete button on your keyboard, older motherboards and certain less common brands have other ways to access the bios but this usually works, your machine is quite newish sounding and i would hope that hp gave you a manual with it! you should than see a simple menu of bios options to access, try using the cursor keys to navigate around, if memory serves you will want to select a set of options entitled 'integrated peripherals' or something similar, select and press return, if you have the right set of options you will see an entry for com ports, select com2 by highlighting it, and if your bios is navigated the same way as mine, then use pageup or pagedown buttons to scroll through various options for this com port, note the currently selected value before changing, look for a value called 'disabled' press escape and highlight a screen option called save changes and exit, press return, press y for yes.<< Tried it, but still no joy. I've hit cursor keys, page up, page down, left and right. Can't find *anything* labelled com1, com2, com3, etc. (or ttys0, either <g>). Maybe disabling the com isn't necessary, though. Could someone please post their entire isapnp.conf file? (Preferably someone with a similar setup, but even a fairly different one should work.) That way I could make sure that the problem isn't there to begin with. (After all, it does say "don't know what to do with this value" in isapnp.conf, which indicates a poor setup.) Thank you for any help at all! Murray