Suggestion: Regarding System Restore

I hope something can be done to rectify the problems faced by running a system restore:

 

i.  Restore unsuccessful after reboot (something about Norton's self-protection?)

[cause: restoring from a recent point]

 

ii.  If restore is successfully made, Norton will give a big red X and run support/download previous updates (something about dates not corresponding?)

[cause: restoring from a point a few days ago]

 

iii.  In addition to item ii., without fully updating to the latest patch, auto-protect won't be enabled any other way

[which made me download some 70MB of updates]

 

iv.  Once or twice after restoring and completed LU, NIS didn't load on startup, nor could it be loaded from the start menu... (could this be a different issue?)

[very scary to me, and I'm typing this message without NIS loaded...]

 

 

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NIS09, Vista HP SP1