My Nokia 6233 is trying to make me think I'm going off my head!

I have some text messages saved as templates, every so often they disappear.
I know I haven't deleted them, but when I got to use the template it isn't
there.

Also when you create a text message and use recent contacts sometimes a
contact isn't there although I know I had sent them a text in the last few.
It isn't the case that I'd sent so many that they had dropped off the list.

And lastly it refuses to recognise one of my contacts when I get a message
from them, it just lists the number. I've tried deleted the contact, saving
them to the phone instead of the sim card, but no avail. I've also saved
the number from the message so that it is in exact same format but nope.

Anyone else had similar problems? (I've had it since Sept and I first
noticed it playing up in about January)
leithie