The other day I was having trouble getting a GPRS connection- my Treo 600 just kept reporting that no connection was available. So I tried removing and reseating the SIM card (I didn't turn off the wireless mode first). Now, I constantly get the message "SIM card not found: Please check your SIM card to see if it is damaged or missing" whenever I try to activate wireless mode. I exchanged it for a new card at the local ATT Wireless (now Cingular) store, but no go. Have I completely hosed my baby? Perhaps this is a sign from the gods that I need to upgrade to the 650.

I have one of the original Handspring models. Any help would be appreciated! Thanks.