I have a Nokia E51 and have been experiencing a weird issue.

It seems that my memory card is being wiped totally for some reason.  It's done it twice now, and I honestly don't believe that it's something I intentionally triggered.

Just checking on the spec page (http://www.forum.nokia.com/Devices/Device_specifications/E51/) it seems my phone can only handle a max memory card size of 4GB.  The card I have is 8GB

Could the card being too large cause the sorts of issues I'm experiencing?  Seems unlikely, but it's the best thing I can think of so far.

I haven't done any firmware updates or anything lately.  I have however installed some apps via Ovi Suite.  These are all to the internal phone memory though.