Hi Alex, 

I,v been using the windows version of the Wizann points revision software for the last two years, All was working ok till last night when I came back from a pointing trip, booted up my laptop, revised my points, then made a start on inputting information I got from my pointing trip, I highlighted the first point and the individual box for the point came up on the screen, I clicked in the S.D. box and tryed to type, as soom as I done this a separate box came up with the following,

"Unhandled exeption has occurred in your application, if you click continue, the application will ignore this error and attempt to continue, If you click quit, the application will close immediatley.

Attempted to read or write protected memory. This is often an indication that other memory is corrupt"

Last week I used 8 of the points with no data to add points I found that where not in my data base,  I.m gussing that has created the problem, can it be undone? 

Every thing else is working fine, I just can,t input data,

Having a bit of a melt down, on 28s and up on 11th Aug, reverting back to writing, sit down and leaving info on flash cards, means in using two systems, not ideal, any help would be very appreciated, my email hm3guigan@aol.co.uk