New messages do not show up immediately - HTC Desire Z Has anybody else encountered this problem? I go into my message inbox and at that point I see I have unread text messages that were received many hours before without notification.

I have got the notifications configured appropriately to alert me to new text messages in the status bar. This is an intermittent problem.

Any help much appreciated.
Other folks here have suggested that the issue may be with your SIM card:


Recipients complain they receive Text Message from me with a half hour delay


I was having a similar problem which was resolved when I reset my phone to factory settings (for other reasons). It might be worth asking your carrier for a new SIM, though. 

PS. This user asked about sms receipt delays -- a different but related question.