I have had my TA on a timer for 2 years now and it updates about every other day every time I check it, maybe every 2-3 weeks. I checked it last night (Thurs), and the last GC had been Wed A.M., but the update had failed earlier in the day with an SO3 error. I had never seen that before. I tried a manual update and it got to downloading but once again failed on an SO3. I rebooted and same behavior. I went to bed and checked it this morning. While the GC is still saying Wed, so a little over 2 days now without an update, a program update had completed and an index had occurred. No sign of any SO3 error. Anybody know what exactly an SO3 error is?? Whatever it is, it fixed itself.