Am I able to switch versions??

[admin]

Ernie, ddouglass is right. The RegCode changed for 3.0xx. Thus, to install 2.613 again, you will need to find your prior RegCode for that version and enter it in, overwriting the 3.0 RegCode that will appear when you try to install 2.316.

[George]

I was under the impression that the original reg. code, in the upper block was persistant and when the reg. code changed,the new code appeared in the lower block, and the prior version could still be installed simply copying and pasting the old code to the lower block, or blanking out the lower block.