Well, as we all know the Outlook data in a WM5 device is written to the file "pim.vol". Since this file will be in use all time it does make it difficult to backup this file.
So every backup application has to do some trick about it. Sprite Backup 5 does it quite simple: It just copies your file from "pim.vol" to "pim.volc" (it basically does this with every .vol file). The big issue about it: It will copy your file IN RAM.
So in my case it was easy math: My 16MB pim.vol file (6500 appointments, 800 contacts) was copied to RAM. Well, especially when I did not have a lot of RAM free (e.g. running some more applications) this would cause severe crashes. And it even left orphaned ".volc" files on my device. In RAM. More than 17MB!
---> Conclusion: If you experienced crashes with Sprite Backup: Make sure you delete all ".volc" files on your root folder (RAM). If you ever used Sprite Backup: Check!
Sprite is aware of this issue and was trying to fix it with a new beta. But I did not want to end up beta-testing their reliability. This is supposed to be rock-solid since it is a backup utility!
Read more at: http://www.spritesoftware.com/forum/...a1fc114fd20bd2
---> 2nd conclusion: Use SpB Backup. I do not know about their backup procedure. But it works. And I am certainly not affiliated with SpB
If a SpB employee reading this: I would really like an explanation on this one.